Head And Neck Anatomy Toughest Quiz!
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The skull is composed of……… bones:
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22
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20
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21
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23
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Dive into the complexities of head and neck anatomy with our challenging quiz! Assess your knowledge on skull structure, cerebral cranium, and facial cranium bones. Perfect for medical students and professionals seeking to sharpen their anatomical skills.
Quiz Preview
- 2.
The cerebral cranium is composed of………. bones:
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8
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7
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9
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10
Correct Answer
A. 8Explanation
The cerebral cranium is composed of 8 bones.Rate this question:
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- 3.
How many paired bones of cerebral cranium:
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2
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3
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4
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5
Correct Answer
A. 2Explanation
The cerebral cranium consists of two paired bones, the parietal bones. These bones are located on the top and sides of the skull and form the majority of the cranial vault.Rate this question:
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- 4.
How many single bones of cerebral cranium:
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4
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5
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7
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8
Correct Answer
A. 4Explanation
The correct answer is 4 because the cerebral cranium is made up of eight bones, but four of them are paired bones (two on each side). Therefore, when considering single bones, there are only four.Rate this question:
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- 5.
The paired bones of cerebral cranium are:
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Parietal and Temporal
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Frontal and Temporal
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Sphenoid and Ethmoid
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Occipital and Parietal
Correct Answer
A. Parietal and TemporalExplanation
The paired bones of the cerebral cranium are the parietal and temporal bones. The parietal bones form the upper sides and roof of the cranium, while the temporal bones are located on the sides and base of the cranium. These bones work together to provide protection and support for the brain, as well as to help form the shape of the skull.Rate this question:
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- 6.
How many single bones and paired bones of facial cranium:
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2 single bones and 6 paired bones
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3 single bones and 5 paired bones
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4 single bones and 4 paired bones
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6 single bones and 2 paired bones
Correct Answer
A. 2 single bones and 6 paired bonesExplanation
The facial cranium consists of various bones that form the structure of the face. In this case, the correct answer states that there are 2 single bones and 6 paired bones in the facial cranium. This means that there are two individual bones and six pairs of bones present. The paired bones are likely bones that are symmetrical and occur in pairs, such as the maxilla, zygomatic bone, nasal bone, lacrimal bone, palatine bone, and inferior nasal conchae. The single bones may refer to bones that occur individually, such as the vomer and mandible.Rate this question:
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- 7.
The single bones of facial cranium:
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Vomer and Mandible
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Maxilla and Zygomatic bone
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Nasal bone and Inferior Nasal Concha
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Lacrimal bone and Palatine bone
Correct Answer
A. Vomer and MandibleExplanation
The correct answer is Vomer and Mandible. The vomer is a single bone that forms the lower part of the nasal septum, separating the left and right nasal cavities. The mandible, also known as the jawbone, is the only movable bone in the skull and forms the lower jaw. These two bones are part of the facial cranium and play important roles in the structure and function of the face.Rate this question:
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- 8.
The bone that has Supraorbital Foramen is:
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Frontal Bone
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Parietal Bones
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Maxillae
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Zygoma
Correct Answer
A. Frontal BoneExplanation
The supraorbital foramen is a small opening located above the eye socket, through which the supraorbital nerve and artery pass. The frontal bone is the bone that forms the forehead and the upper part of the eye socket. It is also responsible for housing the supraorbital foramen. Therefore, the correct answer is the frontal bone.Rate this question:
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- 9.
The bones which are on both side of the skull is:
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Parietal and Temporal
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Frontal and Temporal
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Occipital and Parietal
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Temporal and Occipital
Correct Answer
A. Parietal and TemporalExplanation
The bones on both sides of the skull are the parietal and temporal bones. The parietal bones form the upper sides and roof of the skull, while the temporal bones are located on the sides and base of the skull. These bones provide protection for the brain and also play a role in supporting the structure of the skull.Rate this question:
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- 10.
Foramen Magnum is:
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A large hole allowing passage of the spinal cord
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A hole on the Temporal Bone
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A landmark on the Sphenoid Bone
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A superior and inferior line running laterally from the midline
Correct Answer
A. A large hole allowing passage of the spinal cordExplanation
The foramen magnum is a large hole located at the base of the skull that allows for the passage of the spinal cord. It is the opening through which the spinal cord connects to the brain. This structure is crucial for the communication between the brain and the rest of the body, as it provides a pathway for the transmission of nerve signals.Rate this question:
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- 11.
Supra-orbital foramen is on:
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Frontal Bone
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Zygoma
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Maxilla
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Temporal Bone
Correct Answer
A. Frontal BoneExplanation
The supra-orbital foramen is a small opening located on the frontal bone, specifically on the superciliary arch. It is positioned just above the eye socket, near the midline of the skull. This foramen serves as a passageway for the supra-orbital nerve and artery, which supply sensation to the forehead, scalp, and upper eyelid. The frontal bone forms the anterior portion of the skull, and it is responsible for protecting the brain and supporting the structures of the face.Rate this question:
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- 12.
The smallest bone of the skull is:
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Lacrimal
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Zygoma
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Palatine
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Mandible
Correct Answer
A. LacrimalExplanation
The correct answer is Lacrimal. The lacrimal bone is the smallest bone of the skull. It is located in the inner corner of the eye socket and forms a part of the orbit. The lacrimal bone is thin and fragile, and its main function is to house the tear ducts, which drain tears from the eyes into the nasal cavity.Rate this question:
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- 13.
The suture between frontal and temporal bones is:
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Coronal suture
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Sagittal suture
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Lambdoidal suture
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Squamosal suture
Correct Answer
A. Coronal sutureExplanation
The suture between the frontal and temporal bones is known as the coronal suture. This suture runs horizontally across the skull, separating the frontal bone at the front from the two temporal bones on the sides. The coronal suture is one of the major sutures of the skull and plays a crucial role in connecting and stabilizing these bones.Rate this question:
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- 14.
The suture between the parietal bones is:
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Sagittal suture
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Coronal suture
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Lambdoidal suture
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Squamosal suture
Correct Answer
A. Sagittal sutureExplanation
The suture between the parietal bones is called the sagittal suture. This suture runs along the midline of the skull, dividing it into left and right halves. It connects the two parietal bones together, allowing for growth and expansion of the skull during development. The sagittal suture is a fibrous joint that typically fuses completely by adulthood, forming a solid connection between the parietal bones.Rate this question:
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- 15.
The suture between temporal and parietal bones is:
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Squamosal suture
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Coronal suture
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Sagittal suture
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Lambdoidal suture
Correct Answer
A. Squamosal sutureExplanation
The suture between the temporal and parietal bones is called the squamosal suture. This suture is a type of fibrous joint that connects the squamous part of the temporal bone with the parietal bone. It is named "squamosal" because of the scale-like appearance of the bone edges that fit together at this suture. The squamosal suture is located on the lateral side of the skull and helps to stabilize and strengthen the connection between the temporal and parietal bones.Rate this question:
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- 16.
Infra-orbital foramen is on:
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Maxilla
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Zygoma
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Palatine bone
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Nasal Bone
Correct Answer
A. MaxillaExplanation
The infra-orbital foramen is located on the maxilla bone. The maxilla is a facial bone that forms the upper jaw and contains the sockets for the upper teeth. The infra-orbital foramen is a small opening located below the eye socket, through which the infra-orbital nerve and blood vessels pass. This nerve provides sensation to the skin of the lower eyelid, upper lip, and part of the cheek. Therefore, the correct answer is Maxilla.Rate this question:
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- 17.
How many foramens are in the mandible:
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2 foramens, Mandibular and Mental foramens
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2 foramens, Mandibular and infra-orbital foramens
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2 foramens, Mandibular and Incisive foramens
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2 foramens, Mental and Incisive foramens
Correct Answer
A. 2 foramens, Mandibular and Mental foramensExplanation
The mandible, or jawbone, has two foramens: the Mandibular foramen and the Mental foramen. The Mandibular foramen is located on the inner surface of the mandible and allows for the passage of nerves and blood vessels. The Mental foramen is located on the outer surface of the mandible, near the chin, and also allows for the passage of nerves and blood vessels.Rate this question:
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- 18.
The most fragile bone of the face is:
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Lacrimal Bone
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Palatine bone
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Mandible
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Maxilla
Correct Answer
A. Lacrimal BoneExplanation
The lacrimal bone is the most fragile bone of the face because it is a small, thin bone located in the medial wall of the orbit (eye socket). It is responsible for housing the tear ducts and providing support to the eye. Due to its delicate structure and location, it is more prone to fractures and damage compared to the other bones of the face.Rate this question:
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- 19.
Zygomatic arch is formed by:
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Zygoma and temporal
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Temporal and Maxilla
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Zygoma and Maxilla
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Temporal, Zygoma and Maxilla
Correct Answer
A. Zygoma and temporalExplanation
The zygomatic arch is a bony structure that forms the prominence of the cheekbone. It is formed by the zygoma (cheekbone) and the temporal bone. These two bones come together to create a strong and rigid arch that provides support and protection to the side of the face. The other options listed do not accurately describe the bones that form the zygomatic arch.Rate this question:
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- 20.
Meninges is formed by:
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All of them
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Pia Mater
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Dura Mater
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Arachnoid Mater
Correct Answer
A. All of themExplanation
The meninges is the protective covering of the brain and spinal cord. It is formed by three layers: the pia mater, dura mater, and arachnoid mater. The pia mater is the innermost layer, closely adhering to the brain and spinal cord. The dura mater is the tough, outermost layer. The arachnoid mater is the middle layer, located between the pia mater and the dura mater. Therefore, the correct answer is "All of them" as all three layers contribute to the formation of the meninges.Rate this question:
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- 21.
Subarachnoid Space is:
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Between Arachnoid and Pia Maters
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Above Pia Mater
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Below Arachnoid Mater
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Between Dura and Arachnoid Maters
Correct Answer
A. Between Arachnoid and Pia MatersExplanation
The subarachnoid space is located between the arachnoid and pia maters, which are two of the three layers of the meninges that surround and protect the brain and spinal cord. This space is filled with cerebrospinal fluid (CSF) and contains blood vessels that supply nutrients to the brain. The CSF in the subarachnoid space acts as a cushion, protecting the brain and spinal cord from impact and injury.Rate this question:
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- 22.
Cerebrospinal Fluid (CSF) is in:
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Subarachnoid space
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Dura Mater
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Extradural Space
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Pia Mater
Correct Answer
A. Subarachnoid spaceExplanation
Cerebrospinal Fluid (CSF) is found in the subarachnoid space. This space is located between the arachnoid mater and the pia mater, which are two of the three layers that make up the meninges, the protective covering of the brain and spinal cord. The subarachnoid space is filled with CSF, which acts as a cushioning and protective fluid for the brain and spinal cord. It also helps to transport nutrients and remove waste products from the central nervous system.Rate this question:
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- 23.
Meninges is in:
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Epidural Space and Subdural, Subarachnoid Spaces
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Epidural Space
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Subdural and Subarachnoid Spaces
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Potential and Subarachnoid Spaces
Correct Answer
A. Epidural Space and Subdural, Subarachnoid SpacesExplanation
The correct answer is Epidural Space and Subdural, Subarachnoid Spaces. The meninges are a protective layer of membranes that surround the brain and spinal cord. The epidural space is the area between the skull or vertebral canal and the dura mater, which is the outermost layer of the meninges. The subdural space is the area between the dura mater and the arachnoid mater, which is the middle layer of the meninges. The subarachnoid space is the area between the arachnoid mater and the pia mater, which is the innermost layer of the meninges. Therefore, the meninges are present in the epidural space and the subdural and subarachnoid spaces.Rate this question:
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- 24.
Artery supplies cranial dura mater is:
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Middle meningeal artery
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Anterior meningeal artery
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C. Posterior meningeal artery
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Internal Carotid artery
Correct Answer
A. Middle meningeal arteryExplanation
The middle meningeal artery is responsible for supplying the cranial dura mater. It is a branch of the maxillary artery, which is itself a branch of the external carotid artery. The middle meningeal artery enters the cranium through the foramen spinosum and then divides into anterior and posterior branches. These branches supply the meninges, including the dura mater, which is the tough outermost layer of the meninges that covers the brain and spinal cord. Therefore, the middle meningeal artery is the correct answer for this question.Rate this question:
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- 25.
Dural venous sinuses are in:
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Dura mater
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Arachnoid mater
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Pia mater
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Subarachnoid space
Correct Answer
A. Dura materExplanation
Dural venous sinuses are located within the dura mater, which is the outermost and toughest layer of the meninges that surround and protect the brain and spinal cord. The dura mater contains various channels called venous sinuses, which are responsible for draining deoxygenated blood and cerebrospinal fluid from the brain and returning it to the systemic circulation. These sinuses play a crucial role in maintaining the proper functioning of the brain and preventing the buildup of excess fluid or pressure within the cranial cavity.Rate this question:
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- 26.
The nerve supply of the face and scalp:
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All of them
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Facial Nerve
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Trigeminal Nerve
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Optic and Oculomotor nerve
Correct Answer
A. All of themExplanation
The correct answer is "All of them." This means that the nerve supply of the face and scalp includes all three options listed: Facial Nerve, Trigeminal Nerve, and Optic and Oculomotor nerve. This suggests that multiple nerves contribute to the innervation of the face and scalp, indicating a complex network of nerves involved in sensory and motor functions in this area.Rate this question:
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- 27.
Blood supply of the face and scalp:
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All of them
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Ophthalmic artery and Maxillary artery
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Facial Artery and Superficial temporal artery
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Posterior auricular artery and Occipital artery
Correct Answer
A. All of themExplanation
The blood supply of the face and scalp is provided by multiple arteries, including the ophthalmic artery, maxillary artery, facial artery, superficial temporal artery, posterior auricular artery, and occipital artery. These arteries ensure that the face and scalp receive a sufficient blood supply to nourish the tissues and maintain their normal function.Rate this question:
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- 28.
There are…………pairs of Cranial Nerves:
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12
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9
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10
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11
Correct Answer
A. 12Explanation
The correct answer is 12 because there are 12 pairs of cranial nerves in the human body. These nerves emerge directly from the brain and are responsible for various functions such as sensory perception, motor control, and autonomic functions. Each pair of cranial nerves is associated with specific regions and functions of the head and neck.Rate this question:
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- 29.
How many Cranial nerves are only Sensory:
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3
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. 2
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4
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5
Correct Answer
A. 3Explanation
There are 12 pairs of cranial nerves in the human body, and out of these, only one cranial nerve, the olfactory nerve (CN I), is purely sensory. It is responsible for the sense of smell. The other cranial nerves have both sensory and motor functions, controlling various functions such as vision, hearing, taste, and movement of the face and neck muscles. Therefore, the correct answer is 1, as only one cranial nerve is purely sensory.Rate this question:
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- 30.
How many Cranial Nerves are only motor:
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5
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4
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6
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7
Correct Answer
A. 5Explanation
There are 12 pairs of cranial nerves in the human body. Out of these, only one cranial nerve, the Trochlear nerve (cranial nerve IV), is purely motor. It controls the movement of the superior oblique muscle of the eye. Therefore, the correct answer is 1.Rate this question:
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- 31.
How many Cranial nerves are mixed:
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4
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3
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5
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6
Correct Answer
A. 4Explanation
There are 12 pairs of cranial nerves, and out of these, 4 pairs are considered mixed nerves. Mixed nerves contain both sensory and motor fibers. These 4 mixed cranial nerves are the Trigeminal nerve (V), Facial nerve (VII), Glossopharyngeal nerve (IX), and Vagus nerve (X). They are responsible for various functions, including sensation and movement of the face, jaw, tongue, throat, and organs in the chest and abdomen.Rate this question:
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- 32.
The following sensory nerve is:
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Olfactory (CN I)
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Vagus (CN X)
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Trigeminal (CN V)
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Oculomotor (CN III)
Correct Answer
A. Olfactory (CN I)Explanation
The correct answer is Olfactory (CN I). The olfactory nerve is responsible for our sense of smell. It carries sensory information from the olfactory epithelium in the nasal cavity to the brain. This nerve is unique because it is the only cranial nerve that directly connects to the cerebrum, bypassing the thalamus. Its primary function is to detect and transmit information about different odors to the brain, allowing us to perceive and distinguish various smells.Rate this question:
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- 33.
The following sensory nerve is:
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Optic (CN II)
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Trigeminal (CN V)
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Oculomotor (CN III)
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Accessory (CN XI)
Correct Answer
A. Optic (CN II)Explanation
The correct answer is Optic (CN II) because the optic nerve is responsible for transmitting visual information from the retina to the brain. It is involved in the sense of sight and is crucial for vision. The other options listed are not sensory nerves directly related to vision. The trigeminal nerve (CN V) is responsible for sensation in the face and controlling the muscles involved in chewing. The oculomotor nerve (CN III) controls the movement of certain eye muscles. The accessory nerve (CN XI) controls the movement of the head and shoulders.Rate this question:
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- 34.
The following sensory nerve is:
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Vestibulocochlear (CN VIII)
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Trochlear (CN IV)
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Abducens (CN VI)
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Hypoglossal (CN XII)
Correct Answer
A. Vestibulocochlear (CN VIII)Explanation
The correct answer is Vestibulocochlear (CN VIII). The vestibulocochlear nerve is responsible for transmitting sensory information from the inner ear to the brain. It is involved in hearing and balance. The trochlear nerve controls the movement of the superior oblique muscle of the eye. The abducens nerve controls the movement of the lateral rectus muscle of the eye. The hypoglossal nerve controls the movement of the tongue.Rate this question:
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- 35.
The following motor nerve is:
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Oculomotor (CN III)
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Olfactory (CN I)
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Optic ( CN II)
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Trochlear (CN IV)
Correct Answer
A. Oculomotor (CN III)Explanation
The correct answer is Oculomotor (CN III). The oculomotor nerve is responsible for controlling the movement of the eye muscles, including the muscles that control pupil constriction and accommodation. It also innervates the muscles that elevate the eyelid. This nerve plays a crucial role in eye movements and is responsible for coordinating eye movements to maintain proper alignment and focus.Rate this question:
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- 36.
The following motor nerve is:
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Abducens ( CN VI)
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Facial ( CN VII)
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Vestibulocochlear (CN VIII)
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Glossopharyngeal (CN IX)
Correct Answer
A. Abducens ( CN VI)Explanation
The correct answer is Abducens (CN VI). The Abducens nerve is responsible for the innervation of the lateral rectus muscle of the eye, which is responsible for outward eye movement (abduction). It originates from the pons and travels through the cavernous sinus before entering the orbit to innervate the lateral rectus muscle. Dysfunction of the Abducens nerve can result in medial deviation of the affected eye (esotropia) and double vision (diplopia) when looking laterally.Rate this question:
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- 37.
The following motor nerve is:
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Accessory ( CN XI)
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Olfactory ( CN I)
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Optic (CN II)
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Trigeminal (CN V)
Correct Answer
A. Accessory ( CN XI)Explanation
The correct answer is Accessory (CN XI). The question is asking about a motor nerve, and out of the options provided, only the Accessory nerve (CN XI) is a motor nerve. The Olfactory nerve (CN I) and Optic nerve (CN II) are sensory nerves responsible for the sense of smell and vision, respectively. The Trigeminal nerve (CN V) is a mixed nerve that carries both sensory and motor signals, but it is primarily responsible for sensory functions such as facial sensation. Therefore, the Accessory nerve (CN XI) is the correct answer as it is specifically a motor nerve.Rate this question:
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- 38.
The following motor nerve is:
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Trochlear (CN IV)
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Olfactory (CN I)
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Trigeminal (CN V)
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Vestibulocochlear (CN VIII)
Correct Answer
A. Trochlear (CN IV)Explanation
The correct answer is Trochlear (CN IV). The trochlear nerve is the fourth cranial nerve and is responsible for the motor control of the superior oblique muscle of the eye. It helps in downward and inward movement of the eye.Rate this question:
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- 39.
The following motor nerve is:
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Hypoglossal (CN XII)
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Trigeminal (CN V)
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Facial (CN VII)
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Olfactory (CN I)
Correct Answer
A. Hypoglossal (CN XII)Explanation
The correct answer is Hypoglossal (CN XII). The hypoglossal nerve is responsible for controlling the movement of the tongue. It innervates the muscles of the tongue, allowing for actions such as speech, swallowing, and chewing. The trigeminal nerve (CN V) is responsible for sensory information from the face and motor control of the muscles involved in chewing. The facial nerve (CN VII) controls the muscles of facial expression, while the olfactory nerve (CN I) is responsible for the sense of smell.Rate this question:
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- 40.
The following mixed nerve is:
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Facial (CN VII)
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Optic (CN II)
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Hypoglossal (CN XII)
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Accessory (CN XI)
Correct Answer
A. Facial (CN VII)Explanation
The correct answer is Facial (CN VII) because the other options listed (Optic, Hypoglossal, and Accessory) are all cranial nerves, but they are not the mixed nerve described in the question. The mixed nerve refers to a nerve that contains both sensory and motor fibers, and the Facial nerve fits this description as it innervates the muscles of facial expression (motor function) and also carries taste sensations from the anterior two-thirds of the tongue (sensory function).Rate this question:
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- 41.
The following mixed nerve is:
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Trigeminal (CN V)
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Olfactory( CN I)
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Abducens ( CN VI)
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Optic ( CN II)
Correct Answer
A. Trigeminal (CN V)Explanation
The correct answer is Trigeminal (CN V). The question is asking for the mixed nerve among the options provided. The Trigeminal nerve is a mixed nerve that contains both sensory and motor fibers. It is responsible for transmitting sensory information from the face, as well as controlling the muscles involved in chewing. The other options listed, Olfactory (CN I), Abducens (CN VI), and Optic (CN II), are all cranial nerves but they are not mixed nerves. Olfactory nerve is responsible for the sense of smell, Abducens nerve controls the lateral rectus muscle of the eye, and Optic nerve is responsible for vision.Rate this question:
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- 42.
The following mixed nerve is:
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Glossopharyngeal ( CN IX)
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Trochlear (CN IV)
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Accessory ( CN XI)
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Hypoglossal ( CN XII)
Correct Answer
A. Glossopharyngeal ( CN IX)Explanation
The correct answer is Glossopharyngeal (CN IX). The other nerves listed, Trochlear (CN IV), Accessory (CN XI), and Hypoglossal (CN XII), are not included in the given mixed nerve.Rate this question:
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- 43.
The following mixed nerve is:
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Vagus (CN X)
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Oculomotor ( CN III)
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Trochlear (CN IV)
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Abducens ( CN VI)
Correct Answer
A. Vagus (CN X)Explanation
The correct answer is Vagus (CN X). The vagus nerve is a mixed nerve that contains both sensory and motor fibers. It is the longest cranial nerve and has multiple functions, including regulating the heart rate, controlling the muscles of the gastrointestinal tract, and providing sensory information from the throat, larynx, and thoracic and abdominal organs. The other options listed, Oculomotor (CN III), Trochlear (CN IV), and Abducens (CN VI), are all motor nerves that primarily control eye movements.Rate this question:
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- 44.
The following sensory nerves are:
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Olfactory, Optic, and Vestibulocochlear
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Trigeminal, Facial, Glossopharyngeal and Vagus
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Oculomotor, Trochlear, Abducens, Accessory and Hypoglossal
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Accessory and Hypoglossal
Correct Answer
A. Olfactory, Optic, and VestibulocochlearExplanation
The correct answer is "Olfactory, Optic, and Vestibulocochlear." These are the three sensory nerves listed in the given options. The olfactory nerve is responsible for the sense of smell, the optic nerve is responsible for vision, and the vestibulocochlear nerve is responsible for hearing and balance.Rate this question:
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- 45.
The following motor nerves are:
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Oculomotor, Trochlear, Abducens, Accessory, and Hypoglossal
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Olfactory, Optic and Vestibulocochlear
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Trigeminal, Facial, Glossopharyngeal and Vagus
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Accessory and Hyphoglossal
Correct Answer
A. Oculomotor, Trochlear, Abducens, Accessory, and HypoglossalExplanation
The correct answer is Trigeminal, Facial, Glossopharyngeal and Vagus. These are the motor nerves responsible for controlling various muscles in the head and neck region. The Oculomotor, Trochlear, Abducens, Accessory, and Hypoglossal nerves are also motor nerves, but they are not listed as options in the given answer.Rate this question:
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- 46.
The following mixed nerves are:
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Trigeminal, Facial, Glossopharyngeal, and Vagus
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Olfactory, Optic and Vestibulocochlear
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Oculomotor, Trochlear, Abducens, Accessory and Hypoglossal
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Accessory and Hyphoglossal
Correct Answer
A. Trigeminal, Facial, Glossopharyngeal, and VagusExplanation
The correct answer is Trigeminal, Facial, Glossopharyngeal, and Vagus. These nerves are all mixed nerves, meaning that they contain both sensory and motor fibers. The trigeminal nerve provides sensory information from the face and controls the muscles involved in chewing. The facial nerve controls the muscles of facial expression and also carries taste sensation from the front two-thirds of the tongue. The glossopharyngeal nerve controls swallowing and carries taste sensation from the back one-third of the tongue. The vagus nerve is responsible for controlling various organs in the body, such as the heart and digestive system.Rate this question:
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- 47.
The Mixed Division of CNV is:
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Mandibular branch
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Ophthalmic branch
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Maxillary branch
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Maxillary and Mandibular branch
Correct Answer
A. Mandibular branchExplanation
The correct answer is "Mandibular branch." The Mixed Division of CNV refers to the trigeminal nerve, which is divided into three main branches: the ophthalmic branch, the maxillary branch, and the mandibular branch. Therefore, the mandibular branch is the correct answer as it is one of the divisions of the trigeminal nerve.Rate this question:
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- 48.
Buccal mucosa, nasal cavity and maxilla is innervated by:
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Maxillary branch
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Ophthalmic branch
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Mandibular branch
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Ophthalmic and Mandibular branch
Correct Answer
A. Maxillary branchExplanation
The buccal mucosa, nasal cavity, and maxilla are innervated by the maxillary branch. This branch is one of the three main branches of the trigeminal nerve, which is responsible for sensory innervation of the face. The maxillary branch specifically supplies sensation to the upper jaw, teeth, nasal cavity, and the mucous membrane of the cheek and upper lip. It does not innervate the ophthalmic branch or the mandibular branch, which supply sensation to different areas of the face.Rate this question:
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- 49.
Division 2 of CN V is running from:
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Foramen Rotundum
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Superior orbital fissure
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Foramen Ovale
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Inferior orbital fissure
Correct Answer
A. Foramen RotundumExplanation
Division 2 of CN V, also known as the maxillary nerve, runs from the foramen rotundum. The foramen rotundum is a small opening in the sphenoid bone located in the middle cranial fossa. This opening allows the maxillary nerve to exit the skull and enter the pterygopalatine fossa, where it gives off various branches to innervate the upper teeth, the maxillary sinus, and the palate. Therefore, the correct answer is Foramen Rotundum.Rate this question:
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