Question 1

Which of the following bones is part of the axial skeleton?

Accepted Answer

Sternum

Question 2

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Hormone synthesis

Question 3

A bone that is roughly cube-shaped and found in the wrist is classified as which type of bone?

Accepted Answer

Short bone

Question 4

Which anatomical area of a long bone contains the growth plate in a child?

Accepted Answer

Metaphysis

Question 5

The microscopic structure of compact bone is organized into repeating units called:

Accepted Answer

Osteons (Haversian systems)

Question 6

Which statement best explains why bone is both hard and flexible?

Accepted Answer

Bone salts (mainly calcium phosphate) provide hardness, while the organic matrix (mainly collagen) provides flexibility.

Question 7

During fetal development, most bones are initially formed from which tissue?

Accepted Answer

Hyaline cartilage

Question 8

Which type of fracture is characterized by the bone breaking into several pieces, often due to high-impact trauma?

Accepted Answer

Comminuted fracture

Question 9

Which suture separates the parietal bones from the occipital bone in the human skull?

Accepted Answer

Lambdoid suture

Question 10

Which feature is unique to cervical vertebrae compared to thoracic and lumbar vertebrae?

Accepted Answer

Presence of transverse foramina

Question 11

What is the primary function of intervertebral discs?

Accepted Answer

To absorb shock and allow flexibility in the spine

Question 12

A patient presents with an exaggerated lateral curvature of the spine. Which abnormal spinal curvature does this describe?

Accepted Answer

Scoliosis

Question 13

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

Accepted Answer

Clavicle

Question 14

How does a true rib differ from a false rib?

Accepted Answer

A true rib attaches directly to the sternum via its own costal cartilage, while a false rib does not.

Question 15

Which bone is part of the pelvic girdle?

Accepted Answer

Ilium

Question 16

Which of the following is a key difference between the male and female pelvis?

Accepted Answer

The female pelvis is broader and shallower to facilitate childbirth.

Question 17

A 25-year-old athlete suffers a spiral fracture of the tibia. Which of the following best describes this type of fracture?

Accepted Answer

A fracture that occurs due to twisting forces, resulting in a ragged break

Question 18

Which equation best represents the mineral component that gives bone its hardness?

Accepted Answer

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

Question 19

During bone remodeling, which cells are primarily responsible for breaking down bone matrix?

Accepted Answer

Osteoclasts

Question 20

A patient with osteoporosis is at increased risk for which type of fracture, and why?

Accepted Answer

Comminuted fracture, because their bones are brittle and likely to shatter

The Skeletal System: Structure, Function, and Anatomy

Study Guide - Practice Questions