Question 1

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

Accepted Answer

Storage of sugars and lipids

Question 2

What is the proper anatomical term for the central shaft of a long bone?

Accepted Answer

Diaphysis

Question 3

Which compound accounts for approximately $\frac{2}{3}$ of the weight of bone and provides its hardness?

Accepted Answer

Calcium phosphate

Question 4

The process of increasing the diameter of a bone is called:

Accepted Answer

Appositional growth

Question 5

Approximately what percentage of the total calcium in the human body is stored in the bones?

Accepted Answer

$99\%$

Question 6

Which of the following is the correct combination of function and shape for the parietal bone?

Accepted Answer

Protection - Flat

Question 7

Which cell is responsible for producing new bone matrix?

Accepted Answer

Osteoblast

Question 8

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

Accepted Answer

They connect lacunae and allow osteocytes to exchange nutrients and waste.

Question 9

During endochondral ossification, which of the following occurs first?

Accepted Answer

Cartilage model is formed

Question 10

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

Accepted Answer

Bone resorption by osteoclasts exceeds bone formation by osteoblasts

Question 11

Which of the following bones is classified as an irregular bone?

Accepted Answer

Vertebra

Question 12

Which of the following statements about the axial skeleton is correct?

Accepted Answer

It includes the skull, vertebral column, and thoracic cage

Question 13

Which of the following best describes the difference between the male and female pelvis?

Accepted Answer

The female pelvis has a larger pubic arch and a wider pelvic inlet

Question 14

Which type of joint allows for the greatest range of movement?

Accepted Answer

Synovial joint

Question 15

A person rotates their forearm so that the palm faces upward. This movement is called:

Accepted Answer

Supination

Question 16

If you move your arm away from the midline of your body, this movement is called:

Accepted Answer

Abduction

Question 17

Which of the following best describes the function of red bone marrow?

Accepted Answer

Production of blood cells

Question 18

Which of the following is a correct sequence of events in bone repair after a fracture?

Accepted Answer

Hematoma formation, callus formation, bone remodeling

Question 19

A 25-year-old athlete experiences increased bone thickness in response to weight training. This is an example of:

Accepted Answer

Appositional growth

Question 20

Which of the following best explains why the vertebral column is considered part of the axial skeleton?

Accepted Answer

It provides central support and protection for the spinal cord

The Skeletal System: Structure, Function, and Classification

Study Guide - Practice Questions