Question 1

Which of the following bones is NOT part of the axial skeleton?

Accepted Answer

Scapula

Question 2

A patient presents with a herniated disc between the L4 and L5 vertebrae. Which structure is most likely to be damaged?

Accepted Answer

Nucleus pulposus

Question 3

Which of the following best describes a foramen?

Accepted Answer

An opening through which blood vessels, nerves, or ligaments pass

Question 4

Which bone is unique in that it does not articulate with any other bone?

Accepted Answer

Hyoid bone

Question 5

A long bone is characterized by which of the following features?

Accepted Answer

Greater length than width

Question 6

Which of the following is a function of the paranasal sinuses?

Accepted Answer

They increase the surface area of the nasal mucosa and moisten inhaled air

Question 7

Which of the following surface markings is correctly matched with its function?

Accepted Answer

Foramen – allows passage of blood vessels and nerves

Question 8

A patient with increased thoracic curvature of the vertebral column is most likely diagnosed with which condition?

Accepted Answer

Kyphosis

Question 9

Which of the following equations best represents the total number of bones in the adult human skeleton?

Accepted Answer

$$206 = 80 + 126$$

Question 10

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

Accepted Answer

It protects the spinal cord and supports the head

Question 11

A fracture occurs at the spinous process of a vertebra. Which type of bone surface marking is involved?

Accepted Answer

Sharp, slender projection

Question 12

Which of the following is a correct pairing of a bone and its classification by shape?

Accepted Answer

Femur – long bone

Question 13

A patient has a congenital defect where the laminae of the vertebral arch fail to develop normally. What is the most likely diagnosis?

Accepted Answer

Spina bifida

Question 14

Which of the following best describes the difference between true ribs and floating ribs?

Accepted Answer

True ribs are directly connected to the sternum by their costal cartilages, while floating ribs are not connected to the sternum at all.

Question 15

Which of the following is a function of the axial skeleton in homeostasis?

Accepted Answer

It supports the storage and release of calcium ions

Question 16

A patient is unable to move their lower jaw. Which bone is most likely affected?

Accepted Answer

Mandible

Question 17

Which of the following best describes the function of intervertebral discs?

Accepted Answer

They absorb shock and separate vertebrae

Question 18

Which of the following is a correct description of a suture?

Accepted Answer

An immoveable joint found only in the skull

Question 19

A patient with a lateral curvature of the vertebral column is most likely suffering from which condition?

Accepted Answer

Scoliosis

Question 20

Which of the following best explains why the paranasal sinuses are clinically significant in upper respiratory infections?

Accepted Answer

They are lined with mucous membranes that can become inflamed, leading to sinusitis

Question 21

Which of the following best describes the function of the thoracic cage?

Accepted Answer

It protects the heart and lungs and provides support for the upper limbs

The Axial Skeleton: Structure, Function, and Classification

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