Head And Neck Anatomy Quiz

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  • 1/106 Questions

    The single floating bone in the neck is the hyoid bone

    • True
    • False
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About This Quiz

Do you know enough about your head and neck anatomy? Test your knowledge and revise the same concept with the following quiz. Here, we will focus on the anatomy of the head and neck, and you will be asked questions related to its various anatomical aspects, such as the skull, eyes, nose, teeth, ears, and throat, as well as the See morevital blood vessels and nerves. The test consists of more than a hundred questions; make sure you read all of them carefully and answer accordingly. All the best!

Head And Neck Anatomy Quiz - Quiz

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  • 2. 

    Which of the following muscle groups is innervated by the facial nerve?

    • Intrinsic tongue muscles

    • Extrinsic tongue muscles

    • Muscles of facial expression

    • Muscles of mastication

    Correct Answer
    A. Muscles of facial expression
    Explanation
    The facial nerve is responsible for innervating the muscles of facial expression. This includes muscles such as the orbicularis oculi, which controls eye blinking and closing, and the zygomaticus, which is involved in smiling. These muscles are important for facial movements and expressions, and their innervation by the facial nerve allows for the control and coordination of these movements.

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  • 3. 

    Which muscle is located just deep to the skin of the neck?

    • Platysma

    • Buccinator

    • Risorius

    • Mentalis

    Correct Answer
    A. Platysma
    Explanation
    The platysma muscle is located just deep to the skin of the neck. It is a thin, sheet-like muscle that extends from the chest to the lower jaw. The platysma muscle helps to lower the jaw, tense the skin of the neck, and assist in facial expressions such as grimacing or frowning.

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  • 4. 

    The pair of foramina that are located above the eye socket on the eyebrow are called _________ foramen.

    • PSA

    • Infraorbital

    • Supraorbital

    • Superorbital

    Correct Answer
    A. Supraorbital
    Explanation
    The pair of foramina that are located above the eye socket on the eyebrow are called supraorbital foramen.

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  • 5. 

    Which of the following muscle groups inserts directly on the hyoid bone?

    • Geniohyoid, stylohyoid, and omohyoid muscles

    • Masseter, stylohyoid, and digastric muscles

    • Masseter, buccinator, and omohyoid muscles

    • Palatopharygeus and palatoglossus muscles and muscle of the uvula

    Correct Answer
    A. Geniohyoid, stylohyoid, and omohyoid muscles
    Explanation
    The geniohyoid, stylohyoid, and omohyoid muscles are the correct answer because they are the only muscle groups listed that directly insert on the hyoid bone. The other options either include muscles that do not insert on the hyoid bone or include muscles that are not listed in the question.

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  • 6. 

    Which muscle of facial expression compresses the cheeks during chewing, assisting the muscles of mastication?

    • Risorius

    • Buccinator

    • Mentalis

    • Obicularis oris

    Correct Answer
    A. Buccinator
    Explanation
    The muscle of facial expression that compresses the cheeks during chewing, assisting the muscles of mastication, is the buccinator. This muscle is located in the cheek area and helps to keep food between the teeth during chewing. It also plays a role in blowing air out of the mouth and producing certain sounds when speaking.

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  • 7. 

    Which of the following arteries supply the mucous membranes and glands of the hard and soft palates?

    • Greater and lesser palatine artieres

    • PSA

    • ASA

    • Infraorbital

    Correct Answer
    A. Greater and lesser palatine artieres
    Explanation
    The greater and lesser palatine arteries supply the mucous membranes and glands of the hard and soft palates. These arteries are branches of the maxillary artery, which is a major blood vessel in the head and neck region. The mucous membranes and glands of the hard and soft palates require a good blood supply for their proper functioning and maintenance. Therefore, the greater and lesser palatine arteries play a crucial role in ensuring the adequate blood flow to these structures.

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  • 8. 

    Neurocranium means around the cranium and viscerocranium means on the face.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given answer is that "Neurocranium" refers to the part of the skull that protects the brain, while "viscerocranium" refers to the part of the skull that forms the face. Therefore, it is true that neurocranium means around the cranium (brain) and viscerocranium means on the face.

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  • 9. 

    The hyoid bone is located _______ and _________ to the thyroid cartilage.

    • Inferior, posterior

    • Superior, anterior

    • Lateral, anterior

    Correct Answer
    A. Superior, anterior
    Explanation
    The hyoid bone is located superior and anterior to the thyroid cartilage. This means that it is positioned above and towards the front of the thyroid cartilage in the neck.

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  • 10. 

    The pencil-shaped process occurs on the inferior portion of the temporal bone is the_______________.

    • Hamulus

    • Styloid process

    • Mandibular spine

    • Lingula

    Correct Answer
    A. Styloid process
    Explanation
    The pencil-shaped process that occurs on the inferior portion of the temporal bone is known as the styloid process.

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  • 11. 

    Which of the following muscles is considered a muscle of mastication?

    • Buccinator

    • Risorius

    • Mentalis

    • Masseter

    Correct Answer
    A. Masseter
    Explanation
    The masseter muscle is considered a muscle of mastication. It is located in the jaw and is responsible for the movement of the jaw during chewing. The masseter muscle is one of the strongest muscles in the human body and plays a crucial role in the process of mastication, or chewing food. It contracts to elevate the mandible and close the mouth, allowing for efficient grinding and breaking down of food particles.

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  • 12. 

    Which muscle does not aid in smiling with the lips when it contracts?

    • Zygomatic major muscle

    • Levator anguli oris muscle

    • Zygomaticus minor muscle

    • Epicranial muscle

    Correct Answer
    A. Epicranial muscle
    Explanation
    The epicranial muscle is not involved in smiling with the lips when it contracts. This muscle is responsible for raising the eyebrows and wrinkling the forehead. Smiling with the lips involves the contraction of the zygomatic major muscle, levator anguli oris muscle, and zygomaticus minor muscle.

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  • 13. 

    Which of the following bony plates is perforated to allow the passage of the olfactory nerves for the sense of smell?

    • Medial plate of the sphenoid bone

    • Lateral plate of the sphenoid bone

    • Perpendicular plate of ethmoid bone

    • Cribiform plate of ethmoid bone

    Correct Answer
    A. Cribiform plate of ethmoid bone
    Explanation
    The cribiform plate of the ethmoid bone is perforated to allow the passage of the olfactory nerves for the sense of smell. This plate is located in the roof of the nasal cavity and contains small holes called olfactory foramina through which the olfactory nerves pass. These nerves are responsible for carrying sensory information about smell from the nasal cavity to the brain.

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  • 14. 

    How many cervical vertebra are on the human neck?

    • 5

    • 7

    • 9

    • 11

    Correct Answer
    A. 7
    Explanation
    There are 7 cervical vertebrae in the human neck. These vertebrae are located in the upper part of the spine and are responsible for supporting the head and allowing for a wide range of motion in the neck. Each cervical vertebra is numbered from C1 to C7, with the first vertebra (C1) being closest to the skull and the seventh vertebra (C7) being closest to the thoracic spine.

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  • 15. 

    The occipital condyle forms an articulation with which bone?

    • Atlas

    • Axis

    • Coronoid notch

    • Coronoid process

    Correct Answer
    A. Atlas
    Explanation
    The occipital condyle forms an articulation with the atlas bone. The atlas is the first cervical vertebra and it connects the skull to the spine. The occipital condyles are located on the base of the skull and they fit into the corresponding facets on the atlas, allowing for the movement and rotation of the head.

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  • 16. 

    Which bone is a single bone located at the midline of the skull?

    • Temporal

    • Zygomatic

    • Sphenoid

    • Inferior nasal conchae

    Correct Answer
    A. Sphenoid
    Explanation
    The sphenoid bone is a single bone located at the midline of the skull. It is situated in the middle of the skull base, behind the eyes and below the frontal bone. It is a complex bone that helps form the base of the cranium and also contributes to the sides of the skull and the floor of the eye sockets. The sphenoid bone is important for providing structural support and protection to the brain, as well as housing various structures such as the pituitary gland.

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  • 17. 

    Which of the following muscle groups below serve to depress the hyoid bone?

    • Muscles of mastication

    • Suprahyoid muscles

    • Infrahyoid muscles

    • Extrinsic tongue muscles

    Correct Answer
    A. Infrahyoid muscles
    Explanation
    The infrahyoid muscles are responsible for depressing the hyoid bone. These muscles include the sternohyoid, omohyoid, thyrohyoid, and sternothyroid muscles. When these muscles contract, they pull the hyoid bone downwards, helping to lower the position of the hyoid bone. This action is important for various functions such as swallowing, speaking, and breathing. The muscles of mastication are involved in chewing, the suprahyoid muscles elevate the hyoid bone, and the extrinsic tongue muscles are responsible for moving the tongue. Therefore, the correct answer is infrahyoid muscles.

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  • 18. 

    Which of the following situations occurs when there is subluxation of the TMJ?

    • Head of condyle moves too far anteriorly on the articular eminence

    • Neck of condyle moves too far posteriorly on the articular eminence

    Correct Answer
    A. Head of condyle moves too far anteriorly on the articular eminence
    Explanation
    Subluxation of the TMJ occurs when the head of the condyle moves too far anteriorly on the articular eminence. This means that the condyle, which is the rounded portion of the mandible, shifts forward beyond its normal position on the articular eminence, which is a ridge on the temporal bone. This can cause pain, clicking or popping sounds, and difficulty in opening and closing the mouth properly.

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  • 19. 

    Which bone forms both the superior and middle nasal conchae?

    • Occipital bone

    • Mandible

    • Maxilla

    • Ethmoid

    Correct Answer
    A. Ethmoid
    Explanation
    The ethmoid bone forms both the superior and middle nasal conchae. The superior nasal concha is a thin, curved plate that projects from the upper part of the ethmoid bone, while the middle nasal concha is a smaller, scroll-like projection located below the superior concha. These conchae help to increase the surface area of the nasal cavity, allowing for better filtration, warming, and humidification of inhaled air.

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  • 20. 

    Both the origin of the frontal belly of the epicranial muscle and the insertion of its occipital belly are at the

    • Clavicle and sternum

    • Mastoid process

    • Epicranial aponeurosis

    • Pterygomandibuler raphe

    Correct Answer
    A. Epicranial aponeurosis
    Explanation
    The correct answer is epicranial aponeurosis. The epicranial muscle is composed of two bellies, the frontal belly and the occipital belly. The frontal belly originates from the epicranial aponeurosis, which is a tough, fibrous sheet of connective tissue covering the top of the skull. The occipital belly inserts into the epicranial aponeurosis as well. Therefore, both the origin of the frontal belly and the insertion of the occipital belly are at the epicranial aponeurosis.

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  • 21. 

    The hard palate consists of which two bones?

    • Palatal bone and the bone with the greater palatine foramen as a landmark

    • Vomer and the ethmoid bone

    • Maxilla and the palatine bone

    • Palatine process of the maxilla and the vomer bone

    Correct Answer
    A. Maxilla and the palatine bone
    Explanation
    The hard palate is formed by the maxilla and the palatine bone. The maxilla is the upper jawbone and forms the majority of the hard palate, while the palatine bone is a small, L-shaped bone located at the back of the hard palate. Together, these two bones provide the structure and support for the hard palate, which separates the oral and nasal cavities.

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  • 22. 

    Which of the following arteries can sometimes be visible under the skin of the temporal region on a patient?

    • Maxillary

    • Transverse facial

    • Middle temporal

    • Superficial temporal

    Correct Answer
    A. Superficial temporal
    Explanation
    The superficial temporal artery can sometimes be visible under the skin of the temporal region on a patient. This artery is a branch of the external carotid artery and runs in front of the ear towards the temple area. It is responsible for supplying blood to the scalp and the side of the head. In some individuals, especially those with thin skin or low body fat, the superficial temporal artery may be more prominent and visible.

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  • 23. 

    Which of the following structures are contained within the carotid sheath?

    • Facial nerve

    • Internal jugular vein

    • Aorta

    • Superficial lymph nodes

    Correct Answer
    A. Internal jugular vein
    Explanation
    The carotid sheath is a connective tissue structure that contains several important structures in the neck. One of these structures is the internal jugular vein, which is a major vein that drains blood from the head and neck. The carotid sheath also contains the common carotid artery and the vagus nerve. The facial nerve, a branch of the cranial nerve VII, is not contained within the carotid sheath. Similarly, the aorta, a large artery that carries blood from the heart to the rest of the body, and superficial lymph nodes are not found within the carotid sheath.

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  • 24. 

    Which of the following cranial nerves is associated with the stylomastoid foramen?

    • Fifth cranial nerve

    • Seventh cranial nerve

    • Ninth cranial nerve

    • Tenth cranial nerve

    Correct Answer
    A. Seventh cranial nerve
    Explanation
    The stylomastoid foramen is a small opening located in the temporal bone of the skull. The seventh cranial nerve, also known as the facial nerve, passes through this foramen. This nerve is responsible for controlling the muscles of facial expression and transmitting taste sensations from the anterior two-thirds of the tongue. Therefore, the correct answer is the seventh cranial nerve.

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  • 25. 

    The cranial depression that contains the pituitary gland is called the

    • Hamulus

    • Pituitary depression

    • Sella turcica

    • Foramen magnum

    Correct Answer
    A. Sella turcica
    Explanation
    The cranial depression that contains the pituitary gland is called the sella turcica. The sella turcica is a bony structure located in the sphenoid bone of the skull. It has a saddle-like shape and houses the pituitary gland, which is an important gland responsible for producing and releasing hormones that regulate various bodily functions. The sella turcica provides protection and support to the pituitary gland, ensuring its proper functioning.

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  • 26. 

    Which of the following muscle groups is involved in both elevating the hyoid bone and depressing the mandible

    • Muscles of mastication

    • Suprahyoid muscles

    • Infrahyoid muscles

    • Intrinsic tongue muscles

    Correct Answer
    A. Suprahyoid muscles
    Explanation
    The suprahyoid muscles are responsible for both elevating the hyoid bone and depressing the mandible. These muscles include the digastric, mylohyoid, geniohyoid, and stylohyoid muscles. When these muscles contract, they elevate the hyoid bone, which is important for swallowing and speaking. Additionally, they also assist in depressing the mandible, which is necessary for actions like opening the mouth and chewing. Therefore, the suprahyoid muscles are involved in both of these movements.

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  • 27. 

    Which muscle listed below is MOST superficial  in regards to location?

    • Masseter muscle

    • Medial pterygoid muscle

    • Lateral pterygoid muscle

    • Superior pharyngeal constrictor muscle

    Correct Answer
    A. Masseter muscle
    Explanation
    The masseter muscle is the correct answer because it is the most superficial muscle in regards to location. It is located in the jaw area and is responsible for closing the jaw and chewing. The medial pterygoid muscle and lateral pterygoid muscle are deeper muscles located in the same area, while the superior pharyngeal constrictor muscle is located in the throat.

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  • 28. 

    Which of the following provides branches for the MOST direct blood supply to the TMJ?

    • Internal carotid artery

    • External carotid artery

    • Common carotid artery

    • Aorta

    Correct Answer
    A. External carotid artery
    Explanation
    The external carotid artery provides branches that directly supply blood to the temporomandibular joint (TMJ). The internal carotid artery supplies blood to the brain, while the common carotid artery is a main branch that eventually divides into the internal and external carotid arteries. The aorta is the main artery that carries oxygenated blood from the heart to the rest of the body and does not directly supply blood to the TMJ. Therefore, the external carotid artery is the correct answer as it provides the most direct blood supply to the TMJ.

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  • 29. 

    The _________ plates of the palatine bones and the ___________ process of the maxillae form the hard palate.

    • Horizontal, zygomatic

    • Maxillary, palatal

    • Horizontal, palatine

    • Vertical, palatine

    Correct Answer
    A. Horizontal, palatine
    Explanation
    The correct answer is "horizontal, palatine." The hard palate is formed by the horizontal plates of the palatine bones and the palatine process of the maxillae. The horizontal plates of the palatine bones are located at the back of the mouth, while the palatine process of the maxillae is located at the front. Together, they form the hard palate, which separates the oral and nasal cavities.

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  • 30. 

    Which of the following landmarks is an anterior process located on the sphenoid bone?

    • Wing

    • Notch

    • Body

    • Angle

    Correct Answer
    A. Wing
    Explanation
    The correct answer is "wing." The sphenoid bone has two wings, also known as the greater wings, which extend laterally from the body of the bone. These wings are important landmarks in the skull and play a role in the formation of the cranial floor and the sides of the skull.

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  • 31. 

    Which of the following landmarks associated with the TMJ is located on the mandible?

    • Articular eminence

    • Condyle

    • Articular fossa

    • Postglenoid process

    Correct Answer
    A. Condyle
    Explanation
    The condyle is a landmark associated with the TMJ that is located on the mandible. It is the rounded, bony prominence at the end of the mandible that articulates with the articular fossa of the temporal bone. The condyle plays a crucial role in the movement and function of the TMJ, allowing for the opening and closing of the mouth, as well as side-to-side and forward-backward movements of the jaw.

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  • 32. 

    Which of the following is an overall description of the basic movement performed by the TMJ?

    • Gliding only

    • Rotational only

    • Gliding and rotational

    • The TMJ does not move

    Correct Answer
    A. Gliding and rotational
    Explanation
    The TMJ (temporomandibular joint) is responsible for the movement of the jaw. It allows for both gliding and rotational movements, enabling actions such as opening and closing the mouth, chewing, and speaking. This joint is unique in its ability to perform these two types of movements simultaneously, making it crucial for various functions related to eating and communication.

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  • 33. 

    How many bones are found in the skull and face?

    • 11

    • 22

    • 24

    • 32

    Correct Answer
    A. 22
    Explanation
    The skull and face together contain a total of 22 bones. The skull consists of 8 cranial bones and 14 facial bones, making a total of 22 bones.

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  • 34. 

    The spaces under the three conchae of the lateral walls of the nasal cavity are the

    • Ostia

    • Ducts

    • Meatus

    • Inferior nasal conchae

    Correct Answer
    A. Meatus
    Explanation
    The spaces under the three conchae of the lateral walls of the nasal cavity are known as meatus. Meatus refers to the passageways or channels that are formed by the nasal conchae, which are bony structures in the nasal cavity. These meatuses help to increase the surface area of the nasal cavity, which aids in the filtration, humidification, and warming of the inhaled air.

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  • 35. 

    Which structure of the TMJ secretes synovial fluid?

    • Mandibular condyle

    • Disc of the joint

    • Inner capsule lining membranes

    • Lateral pterygoid muscle

    Correct Answer
    A. Inner capsule lining membranes
    Explanation
    The inner capsule lining membranes of the TMJ secrete synovial fluid. Synovial fluid lubricates the joint, allowing for smooth movement of the mandibular condyle and disc of the joint. This fluid also provides nutrients to the joint and helps to reduce friction and wear on the joint surfaces. The synovial fluid is produced by the inner capsule lining membranes, which are located within the joint and surround the mandibular condyle and disc.

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  • 36. 

    In addition to the zygomatic bone, which of the following bones has a process that forms the other part of the zygomatic arch?

    • Temporal Bone

    • Maxillae

    • Sphenoid

    • Palatine Bone

    Correct Answer
    A. Temporal Bone
    Explanation
    The temporal bone has a process called the zygomatic process, which forms the other part of the zygomatic arch. The zygomatic arch is a bony structure that extends from the zygomatic bone (cheekbone) to the temporal bone. The maxillae, sphenoid, and palatine bone do not have processes that contribute to the formation of the zygomatic arch.

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  • 37. 

    Which of the following is the MOST commonly used muscle when the patients lips close around the saliva ejector?

    • Risorius

    • Mentalis

    • Mylohyoid

    • Buccinator

    • Orbicularis oris

    Correct Answer
    A. Orbicularis oris
    Explanation
    The orbicularis oris is the muscle that is most commonly used when the patient's lips close around the saliva ejector. This muscle is responsible for puckering the lips and closing the mouth. It is a circular muscle that encircles the mouth and is involved in various facial expressions, including closing the lips tightly. The other muscles listed, such as the risorius, mentalis, mylohyoid, and buccinator, are also involved in facial movements but are not specifically responsible for closing the lips around the saliva ejector.

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  • 38. 

    Which muscle listed is considered MOST superior on the head and neck?

    • Corrugator supercilii muscle

    • Zygomatic major muscle

    • Superior pharyngeal constrictor muscle

    • Superior belly of the omohyoid muscle

    Correct Answer
    A. Corrugator supercilii muscle
    Explanation
    The corrugator supercilii muscle is considered the most superior muscle on the head and neck. This muscle is located above the eyebrows and is responsible for pulling the eyebrows downward and inward, causing vertical wrinkles between the eyebrows. It is involved in facial expressions of sadness, anger, and concentration. The zygomatic major muscle is located in the cheek and is responsible for smiling. The superior pharyngeal constrictor muscle is located in the throat and helps in swallowing. The superior belly of the omohyoid muscle is located in the neck and is involved in head and neck movements.

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  • 39. 

    The posterior superior alveolar artery and its branches supply the

    • Maxillary posterior teeth and periodontium

    • Mandibular posterior teeth and periodontium

    • Sternocleidomastoid muscle and thyroid gland

    • Temporalis muscle and parotid salivary gland

    Correct Answer
    A. Maxillary posterior teeth and periodontium
    Explanation
    The correct answer is maxillary posterior teeth and periodontium. The posterior superior alveolar artery is responsible for supplying blood to the maxillary posterior teeth and the surrounding periodontium. This artery branches off from the maxillary artery and travels through the posterior superior alveolar canal to reach its target area. By providing oxygen and nutrients, the artery supports the health and function of the maxillary posterior teeth and the tissues that support them.

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  • 40. 

    Which of the following artery and transmitting foramen pairs below is a CORRECT match?

    • Buccal artery- infraorbital foramen

    • Middle meningeal artery- foramen spinosum

    • Incisive artery- mental foramen

    • Inferior labial artery- mandibular foramen

    Correct Answer
    A. Middle meningeal artery- foramen spinosum
    Explanation
    The middle meningeal artery is correctly matched with the foramen spinosum. The middle meningeal artery is a branch of the maxillary artery and it enters the cranium through the foramen spinosum, which is located in the greater wing of the sphenoid bone. This artery supplies blood to the meninges of the brain and the bones of the skull.

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  • 41. 

    How many bones are found in the viscerocranium?

    • 14

    • 12

    • 10

    • 11

    Correct Answer
    A. 14
    Explanation
    The viscerocranium is the facial skeleton and is comprised of 14 bones. These bones include the mandible, maxilla, nasal bones, zygomatic bones, lacrimal bones, palatine bones, vomer bone, inferior nasal conchae, and the hyoid bone. These bones form the structure of the face and support important functions such as breathing, chewing, and speaking.

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  • 42. 

    How many bones are found in the neurocranium?

    • 8

    • 7

    • 6

    • 10

    Correct Answer
    A. 8
    Explanation
    The neurocranium is the part of the skull that encloses and protects the brain. It is made up of several bones, including the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones. In total, there are 8 bones found in the neurocranium.

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  • 43. 

    Which of the following features is located on the temporal bone?

    • Superior Temporal Line

    • Foramen rotundum

    • External Acoustic meatus

    • Oribital Plate

    Correct Answer
    A. External Acoustic meatus
    Explanation
    The correct answer is External Acoustic meatus. The external acoustic meatus, also known as the ear canal, is a feature located on the temporal bone. It is a tube-like structure that connects the outer ear to the middle ear and is responsible for transmitting sound waves.

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  • 44. 

    Which of the following muscles is an extrinsic muscle of the tongue?

    • Geniohyoid muscle

    • Hyoglossus muscle

    • Mylohyoid muscle

    • Transverse muscle

    Correct Answer
    A. Hyoglossus muscle
    Explanation
    The hyoglossus muscle is an extrinsic muscle of the tongue because it originates from the hyoid bone and inserts into the side of the tongue. This muscle helps to retract and depress the tongue, playing a role in speech and swallowing. The geniohyoid muscle is an intrinsic muscle that helps to move the tongue forward, while the mylohyoid muscle is also an extrinsic muscle but it acts on the floor of the mouth rather than the tongue. The transverse muscle is not a muscle of the tongue at all.

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  • 45. 

    Which of the following muscles is involved in the lateral deviation of the mandible?

    • Masseter muscle

    • Medial pterygoid muscle

    • Lateral pterygoid muscle

    • Temporalis muscle

    Correct Answer
    A. Lateral pterygoid muscle
    Explanation
    The lateral pterygoid muscle is involved in the lateral deviation of the mandible. This muscle is located in the jaw and helps to move the mandible side to side. It works in conjunction with other muscles such as the medial pterygoid muscle and the temporalis muscle to coordinate jaw movements for chewing and speaking.

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  • 46. 

    Which of the following movements of the lower jaw is assisted by the temporalis muscle?

    • Mandibular depression only

    • Mandibular elevation only

    • Mandibular retraction only

    • Mandibular elevation and retraction

    Correct Answer
    A. Mandibular elevation and retraction
    Explanation
    The temporalis muscle is responsible for assisting in the movements of mandibular elevation and retraction. Mandibular elevation refers to the upward movement of the lower jaw, while mandibular retraction refers to the backward movement of the lower jaw. The temporalis muscle, which is located on the side of the head, helps in these movements by contracting and pulling the lower jaw upwards and backwards. Therefore, the correct answer is mandibular elevation and retraction.

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  • 47. 

    Check all of the bones that are in the neurocranium.

    • Frontal bone

    • Nasal bone

    • Maxillae

    • Zygomatic

    • Parietal

    • Occipital

    • Palatine

    • Vomer

    Correct Answer(s)
    A. Frontal bone
    A. Parietal
    A. Occipital
    Explanation
    The neurocranium is the part of the skull that surrounds and protects the brain. The frontal bone, parietal bone, and occipital bone are all part of the neurocranium. These bones form the front, top, and back of the skull respectively. Therefore, the correct answer includes the frontal bone, parietal bone, and occipital bone.

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  • 48. 

    The posterior belly of the digastric muscle is also considered a (an)

    • Muscle of facial expression

    • Posterior suprahyoid muscle

    • Intrinsic muscle of the tongue

    • Extrsinsic muscle of the tongue

    Correct Answer
    A. Posterior suprahyoid muscle
    Explanation
    The posterior belly of the digastric muscle is considered a posterior suprahyoid muscle. The digastric muscle is located in the neck and is responsible for opening the mouth and depressing the mandible. It is part of the suprahyoid muscle group, which also includes the mylohyoid, geniohyoid, and stylohyoid muscles. These muscles play a role in swallowing and elevating the hyoid bone. Therefore, the posterior belly of the digastric muscle is classified as a posterior suprahyoid muscle.

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  • 49. 

    Which area of the mandible articulates with the temporal bone at the TMJ?

    • Lingula

    • Mandibular notch

    • Coronoid process

    • Condyle

    Correct Answer
    A. Condyle
    Explanation
    The condyle is the correct answer because it is the part of the mandible that articulates with the temporal bone at the temporomandibular joint (TMJ). The TMJ is a hinge joint that allows for the movement of the lower jaw, and the condyle is the rounded end of the mandible that fits into the socket of the temporal bone to facilitate this movement. The other options, such as the lingula, mandibular notch, and coronoid process, are not directly involved in the articulation with the temporal bone at the TMJ.

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Stephen Reinbold |PhD (Biological Sciences) |
Biology Instructor
Stephen Reinbold has a PhD in Biological Sciences and a strong passion for teaching. He taught various subjects including General Biology, Environmental Science, Zoology, Genetics, and Anatomy & Physiology at Metropolitan Community College in Kansas City, Missouri, for nearly thirty years. He focused on scientific methodology and student research projects. Now retired, he works part-time as an editor and engages in online activities.

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