Osteology Of The Skull

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Quizzes Created: 13 | Total Attempts: 32,280
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Osteology Of The Skull - Quiz

Parts of the skull


Questions and Answers
  • 1. 

    Genial tubercles (mental spines) are found on the lingual midline, just above the inferior border of the mandible

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Genial tubercles, also known as mental spines, are indeed found on the lingual midline, just above the inferior border of the mandible. These bony projections serve as attachment points for muscles and ligaments in the mouth and play a role in the stabilization and movement of the tongue. Therefore, the statement is true.

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  • 2. 

    The mylohyoid line separates the the submandibular fossa from the sublingual fossa

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The mylohyoid line is a bony ridge on the inner surface of the mandible. It serves as an attachment point for the mylohyoid muscle, which forms the floor of the mouth. The mylohyoid line runs horizontally and separates the submandibular fossa, which houses the submandibular salivary gland, from the sublingual fossa, which contains the sublingual salivary gland. Therefore, the statement that the mylohyoid line separates the submandibular fossa from the sublingual fossa is true.

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  • 3. 

    The mandibular lingual lies just posterior to the mandibular foramen

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    anterior

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  • 4. 

    The rim of the orbit isw made up of the frontal, maxillary and zygomatic bones

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The rim of the orbit is indeed made up of the frontal, maxillary, and zygomatic bones. These bones form the structure around the eye socket, providing protection and support to the eyeball and surrounding tissues. The frontal bone forms the upper part of the rim, while the maxillary bone forms the lower part. The zygomatic bone contributes to the lateral aspect of the rim. Together, these bones create a strong and sturdy framework for the eye, ensuring its proper functioning and safeguarding it from potential injuries.

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  • 5. 

    The alveolar processes form the tooth sockets

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because the alveolar processes, which are bony ridges in the upper and lower jaws, are responsible for holding the teeth in place by forming the tooth sockets. These sockets provide support and stability for the teeth, allowing them to function properly in biting and chewing food.

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  • 6. 

    The bone that forms the cheek is called the zygomatic bone

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The zygomatic bone is indeed the bone that forms the cheek. It is a paired bone that articulates with the frontal bone, temporal bone, and maxilla, forming the prominence of the cheek. It also contributes to the formation of the lateral wall and floor of the orbit.

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  • 7. 

    The transverse palatine suture marks the articulation of the the right and left palatine processes

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    maxillary and palatine process

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  • 8. 

    The ethmoid bone forms most of the lateral wall of the orbit

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    medial

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  • 9. 

    The foramen ovale is located in the sphenoid bone

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The foramen ovale is indeed located in the sphenoid bone. The foramen ovale is a small opening in the base of the skull, specifically in the greater wing of the sphenoid bone. It serves as a passageway for important structures, such as the mandibular nerve, which is a branch of the trigeminal nerve.

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  • 10. 

    The maxilla is a single bone

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement "the maxilla is a single bone" is incorrect. The maxilla is actually a pair of bones that make up the upper jaw in most vertebrates, including humans. Each maxilla bone is located on either side of the face and forms part of the facial skeleton.

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  • 11. 

    There are 14 bones of the neurocranium

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
  • 12. 

    The depression between the coronoid process and the condyle is called the coronoid notch

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The depression between the coronoid process and the condyle is indeed called the coronoid notch. This anatomical feature is found in the mandible, specifically in the temporomandibular joint (TMJ). The coronoid process is a bony projection on the mandible, while the condyle is the rounded portion that articulates with the skull. The coronoid notch is the concave area between these two structures, allowing for smooth movement and proper functioning of the jaw.

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  • 13. 

    The mandible is made up of a body and four processes

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    alveolar process and ramus

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  • 14. 

    Which of the following is not a bone of the neurocranium?

    • A.

      Frontal

    • B.

      Ethmoid

    • C.

      Parietal

    • D.

      Sphenoid

    • E.

      They are all bones of the neuro cranium

    Correct Answer
    E. They are all bones of the neuro cranium
    Explanation
    The correct answer is that all of the options listed (frontal, ethmoid, parietal, and sphenoid) are bones of the neurocranium. The neurocranium is the part of the skull that surrounds and protects the brain. These bones contribute to the structure and stability of the skull, and they play a crucial role in protecting the delicate brain tissue.

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  • 15. 

    Which of the following is not a bone of the viscerocranium?

    • A.

      Sphenoid

    • B.

      Maxilla

    • C.

      Vomer

    • D.

      Nasal

    • E.

      They are all part of the viscerocranium

    Correct Answer
    A. Sphenoid
    Explanation
    The sphenoid bone is not a bone of the viscerocranium. The viscerocranium consists of the facial bones that form the front part of the skull, while the sphenoid bone is part of the neurocranium, which forms the back and sides of the skull. The maxilla, vomer, and nasal bones are all facial bones and therefore part of the viscerocranium.

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  • 16. 

    The hamular procees is part of the

    • A.

      Styloid process

    • B.

      Medial pterygoid plate

    • C.

      Zygomatic process of mandible

    • D.

      Posterior palatine [process

    Correct Answer
    B. Medial pterygoid plate
    Explanation
    The correct answer is the medial pterygoid plate. The medial pterygoid plate is a bony structure located in the skull, specifically in the sphenoid bone. It is part of the pterygoid process, along with the lateral pterygoid plate. The pterygoid process helps form the lateral wall of the nasal cavity and also serves as an attachment site for muscles involved in chewing. The hamular process, on the other hand, is a small hook-shaped projection that extends from the medial pterygoid plate. Therefore, the medial pterygoid plate is the correct answer as it is directly mentioned in the question.

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  • 17. 

    Which is not a process of the maxilla?

    • A.

      Frontal

    • B.

      Zygomatic

    • C.

      Coronoid

    • D.

      Alveolar

    • E.

      All the above are maxillary processes

    Correct Answer
    C. Coronoid
    Explanation
    The coronoid process is not a process of the maxilla. The maxilla is a bone in the skull, and it has several processes that serve different functions. The frontal process is located at the front of the maxilla, the zygomatic process articulates with the zygomatic bone, and the alveolar process contains the sockets for the teeth. However, the coronoid process is actually a part of the mandible, not the maxilla. It is a triangular projection that serves as an attachment site for muscles involved in jaw movement.

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  • 18. 

    Anothe rname for the chin is the mental spine.  Posterior to the chin (bilaterally) is the mental foramen

    • A.

      Both statements are true

    • B.

      The 1st is true, 2nd is false

    • C.

      The 1st is false, 2nd is true

    • D.

      Both statements are false

    Correct Answer
    C. The 1st is false, 2nd is true
    Explanation
    The first statement is false because another name for the chin is not the mental spine. The mental spine is a bony projection on the inside of the mandible, while the chin refers to the anterior part of the mandible. The second statement is true because the mental foramen is indeed located posterior to the chin on both sides.

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  • 19. 

    The mandibular foramen is located on the

    • A.

      Medial ramus of the mandible

    • B.

      Medial angle of the mandible

    • C.

      Floor of the mandible

    • D.

      Depression on the lateral border of angle of mandible

    Correct Answer
    A. Medial ramus of the mandible
    Explanation
    The mandibular foramen is located on the medial ramus of the mandible. The ramus is the vertical part of the mandible that connects the body of the mandible to the condyle. The mandibular foramen is an opening on the inner side of the ramus, through which the mandibular nerve and blood vessels pass. This location allows for the transmission of important nerves and blood vessels to the lower teeth and jaw.

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  • 20. 

    Excluding the ear ossicles there are _______ bones in the skull

    • A.

      8

    • B.

      14

    • C.

      12

    • D.

      18

    • E.

      None of the above

    Correct Answer
    E. None of the above
    Explanation
    The correct answer is none of the above. The skull consists of 22 bones, not counting the ear ossicles. These bones include the cranial bones, which form the top and sides of the skull, and the facial bones, which make up the front of the skull. Therefore, there are more than 8, 14, 12, or 18 bones in the skull.

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  • 21. 

    The nasal septum is formed by the __________ bone

    • A.

      Sphenoid

    • B.

      Ethmoid

    • C.

      Vomer

    • D.

      Maxilla

    • E.

      B and C

    Correct Answer
    E. B and C
    Explanation
    The correct answer is "b and C" because the nasal septum is formed by both the ethmoid bone and the vomer bone. The ethmoid bone is a small, delicate bone located between the eyes, while the vomer bone is a thin, flat bone that forms the lower part of the nasal septum. Together, these bones help to separate the left and right nasal cavities and provide structure to the nose. The sphenoid and maxilla bones do not contribute to the formation of the nasal septum.

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  • 22. 

    Which of the following is not part of the neurocanium?

    • A.

      Sphenoid

    • B.

      Ethmoid

    • C.

      Temporal

    • D.

      Frontal

    • E.

      All of the above

    Correct Answer
    E. All of the above
    Explanation
    All of the above is the correct answer because the neurocranium is composed of several bones that protect the brain, including the sphenoid, ethmoid, temporal, and frontal bones. Therefore, none of these bones are excluded from the neurocranium, making "all of the above" the correct choice.

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  • 23. 

    The mental foramen is in the

    • A.

      Body of the maxilla

    • B.

      Ramus of the mandible

    • C.

      Alveolar process of the mandible

    • D.

      Alceolar process of the maxilla

    • E.

      None of the above

    Correct Answer
    E. None of the above
  • 24. 

    Which of the follwoing statements is true concerning the greater wing of the sphenoid?

    • A.

      It can be seen from a lateral view of the skull

    • B.

      It can be seen from an internal view of the skull

    • C.

      It can be seen in the orbit

    • D.

      A and b

    • E.

      All of the above

    Correct Answer
    E. All of the above
    Explanation
    The greater wing of the sphenoid can be seen from a lateral view of the skull, as it forms part of the lateral wall of the skull. It can also be seen from an internal view of the skull, as it contributes to the floor of the middle cranial fossa. Additionally, it can be seen in the orbit, as it forms the posterior part of the lateral wall of the orbit. Therefore, all of the above statements are true.

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  • 25. 

    The sagittal suture may also be called the

    • A.

      Frontotemporal suture

    • B.

      Parietofrontal suture

    • C.

      Interparietal suture

    • D.

      Parieto-occipital suture

    • E.

      None of the above

    Correct Answer
    C. Interparietal suture
    Explanation
    The sagittal suture is a fibrous joint that connects the two parietal bones of the skull. It extends from the anterior fontanelle, which is the soft spot on a baby's head, to the posterior fontanelle. The interparietal suture refers specifically to the sagittal suture, as it is located between the parietal bones. The other options listed are incorrect because they either refer to different sutures or do not exist.

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  • 26. 

    In which of following bone would you find the external auditory meatus?

    • A.

      Mastoid bone

    • B.

      Temporal bone

    • C.

      Occipital bone

    • D.

      A and c

    • E.

      None of the above

    Correct Answer
    B. Temporal bone
    Explanation
    The external auditory meatus is located in the temporal bone. This bone is situated on the side of the skull and houses the ear canal, which leads to the middle ear. The mastoid bone is also a part of the temporal bone, but it does not contain the external auditory meatus. The occipital bone is located at the back of the skull and does not have the external auditory meatus either. Therefore, the correct answer is the temporal bone.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 14, 2008
    Quiz Created by
    Msarjudeen
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