Question 1

Which bone is considered the 'keystone' of the cranial floor because it articulates with all other cranial bones?

Accepted Answer

Sphenoid bone

Question 2

A patient presents with numbness and pain radiating down the leg after lifting a heavy object. Imaging reveals a herniated disc. Which structure is most likely ruptured?

Accepted Answer

Anulus fibrosus

Question 3

Which of the following is NOT a function of the paranasal sinuses?

Accepted Answer

Providing attachment for neck muscles

Question 4

The foramen magnum is located in which bone?

Accepted Answer

Occipital bone

Question 5

Which vertebra allows the head to nod 'yes'?

Accepted Answer

Atlas (C1)

Question 6

Which of the following is true regarding the hyoid bone?

Accepted Answer

It is the only bone that does not articulate directly with another bone

Question 7

A blow to the side of the head fractures the zygomatic arch. Which two bones are directly involved in this structure?

Accepted Answer

Zygomatic and temporal bones

Question 8

Which suture separates the parietal bones from the occipital bone?

Accepted Answer

Lambdoid suture

Question 9

Which of the following vertebral regions has transverse foramina?

Accepted Answer

Cervical

Question 10

A patient with a fractured dens would have difficulty performing which movement?

Accepted Answer

Rotating the head 'no'

Question 11

Which of the following is a characteristic unique to lumbar vertebrae?

Accepted Answer

Short, blunt spinous processes

Question 12

Which bone forms the inferior portion of the nasal septum?

Accepted Answer

Vomer

Question 13

Which of the following is NOT a function of the thoracic cage?

Accepted Answer

Supporting the lower limbs

Question 14

Which part of the sternum articulates with the clavicles?

Accepted Answer

Manubrium

Question 15

A patient is unable to move their tongue properly after a skull fracture. Which canal is most likely damaged?

Accepted Answer

Hypoglossal canal

Question 16

Which of the following bones does NOT contribute to the formation of the orbit?

Accepted Answer

Nasal bone

Question 17

Which ligament prevents hyperextension of the vertebral column?

Accepted Answer

Anterior longitudinal ligament

Question 18

Which ribs are classified as 'floating ribs'?

Accepted Answer

Ribs 11–12

Question 19

Which of the following best describes the function of the vertebral curves?

Accepted Answer

Help maintain balance and absorb shock

Question 20

Which bone contains the cribriform plate and crista galli?

Accepted Answer

Ethmoid bone

The Axial Skeleton: Structure and Function of the Skull and Vertebral Column

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