Question 1

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

Accepted Answer

Regulation of body temperature

Question 2

A patient presents with a fracture in the shaft of their femur. Which part of the long bone is most likely affected?

Accepted Answer

Diaphysis

Question 3

Which process describes the replacement of hyaline cartilage with bone during fetal development?

Accepted Answer

Endochondral ossification

Question 4

If the activity of osteoclasts exceeds that of osteoblasts, what will happen to bone mass?

Accepted Answer

Bone mass will decrease

Question 5

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 6

A 10-year-old child fractures their calcaneus. Which region of the skeleton is affected?

Accepted Answer

Appendicular skeleton

Question 7

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

Accepted Answer

It covers the outer surface of bone, isolates bone from surrounding tissue, and provides attachment for tendons and ligaments.

Question 8

Which bone marking is a passageway for blood vessels and nerves above each orbit in the skull?

Accepted Answer

Supraorbital foramen

Question 9

A patient with osteoporosis is at increased risk for fractures because:

Accepted Answer

Osteoclast activity remains constant while osteoblast activity slows

Question 10

Which of the following joints allows for the greatest range of motion?

Accepted Answer

Ball-and-socket joint

Question 11

Which equation best represents the chemical composition of the main mineral in bone matrix?

Accepted Answer

$$Ca_3$$($$PO_4)_2$

Question 12

A patient is unable to move their thumb to touch the tips of their other fingers. Which special movement is impaired?

Accepted Answer

Opposition

Question 13

Which of the following is a distinguishing feature of cervical vertebrae?

Accepted Answer

Transverse foramina

Question 14

Which bone articulates with the acetabulum to form the hip joint?

Accepted Answer

Femur

Question 15

A patient with a herniated intervertebral disc is most likely experiencing problems with which type of joint?

Accepted Answer

Symphysis

Question 16

Which vitamin is essential for calcium absorption in the intestines, and its deficiency can lead to rickets in children?

Accepted Answer

Vitamin D3

Question 17

Which of the following movements is an example of abduction?

Accepted Answer

Moving the arm away from the midline of the body

Question 18

Which bone is NOT part of the axial skeleton?

Accepted Answer

Scapula

Question 19

A patient presents with a fracture at the base of the dens. Which bone is fractured?

Accepted Answer

Axis (C2)

Question 20

Which of the following best explains why the bodies of lumbar vertebrae are larger than those of cervical vertebrae?

Accepted Answer

They support more body weight

Chapter 6: The Skeletal System – Structure, Function, and Organization

Study Guide - Practice Questions