Question 1

Which of the following best describes the primary difference between compact bone and spongy bone in terms of structure and function?

Accepted Answer

Compact bone is composed of tightly packed osteons providing strength for weight-bearing, while spongy bone contains trabeculae that support marrow and reduce bone weight.

Question 2

A patient suffers a fracture at the epiphyseal plate of the femur. Which of the following is the most likely consequence if the injury occurs in a growing child?

Accepted Answer

The bone may stop growing in length, potentially resulting in a shorter limb.

Question 3

Which bone marking is correctly matched with its function?

Accepted Answer

Fossa – a shallow depression that may articulate with another bone

Question 4

Which of the following best describes the chemical composition of bone matrix?

Accepted Answer

Bone matrix consists of both organic components (mainly collagen) and inorganic components (mainly hydroxyapatite).

Question 5

A forensic anthropologist finds a vertebra with a bifid spinous process and transverse foramina. To which region of the vertebral column does this vertebra most likely belong?

Accepted Answer

Cervical

Question 6

Which of the following bone markings would you expect to find on the occipital bone?

Accepted Answer

External occipital protuberance

Question 7

A patient presents with difficulty rotating their head from side to side. Damage to which specific vertebra is most likely responsible?

Accepted Answer

Axis (C2)

Question 8

Which of the following best describes the function of canaliculi in compact bone?

Accepted Answer

They connect lacunae, allowing osteocytes to exchange nutrients and waste.

Question 9

A patient is diagnosed with osteoporosis, a condition characterized by decreased bone density. Which component of bone is most affected in this disease?

Accepted Answer

The inorganic hydroxyapatite crystals

Question 10

Which of the following correctly matches the bone with its associated marking?

Accepted Answer

Mandible – mental foramen

Question 11

Which of the following is a distinguishing feature of thoracic vertebrae compared to cervical and lumbar vertebrae?

Accepted Answer

Articulation with ribs

Question 12

Which of the following best describes the role of the periosteum?

Accepted Answer

It covers the outer surface of bone, contains osteoblasts, and is involved in bone growth and repair.

Question 13

A patient has a fracture in the body (centrum) of a vertebra. Which function is most likely to be compromised?

Accepted Answer

Weight-bearing support of the vertebral column

Question 14

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

Accepted Answer

Scapula

Question 15

Which of the following best describes the function of the sella turcica of the sphenoid bone?

Accepted Answer

It houses the pituitary gland.

Question 16

Which bone marking would be most likely to serve as a passageway for nerves and blood vessels?

Accepted Answer

Foramen

Question 17

A patient is unable to chew properly due to damage to the coronoid process. Which bone is affected?

Accepted Answer

Mandible

Question 18

Which of the following best describes the difference between red and yellow bone marrow?

Accepted Answer

Red marrow produces blood cells, while yellow marrow stores fat.

Question 19

Which of the following equations best represents the chemical formula for hydroxyapatite, the main inorganic component of bone?

Accepted Answer

$$\mathrm{Ca_{10}(PO_4$)_6(OH)_2}$$

Question 20

A patient presents with a head injury that damaged the cribriform plate. Which sense is most likely to be affected?

Accepted Answer

Olfaction (smell)

Study Notes: The Skeletal System – Axial Skeleton and Bone Structure

Study Guide - Practice Questions

Study Guide - Flashcards