Question 1

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

Accepted Answer

Production of hormones

Question 2

Which bone marking is defined as a rounded articular projection, often found at the end of long bones?

Accepted Answer

Condyle

Question 3

What is the structural difference between compact bone and spongy bone?

Accepted Answer

Compact bone contains parallel osteons, while spongy bone contains trabeculae.

Question 4

Which of the following equations correctly represents the chemical reaction for bone mineralization?

Accepted Answer

$$Ca^{2+} + 2OH$$^- + $$PO_4$$^{3-} \rightarrow $$Ca_5$$($$PO_4)_3OH$

Question 5

Which cell type is responsible for bone resorption?

Accepted Answer

Osteoclast

Question 6

If osteoclast activity exceeds that of osteoblast activity, what will happen to the mass of the bone?

Accepted Answer

Bone mass will decrease

Question 7

Which structure is found at the central canal of an osteon?

Accepted Answer

Blood vessels and nerves

Question 8

What is the function of yellow bone marrow?

Accepted Answer

Storage of fat

Question 9

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 10

A child is diagnosed with rickets. Which vitamin deficiency is most likely responsible?

Accepted Answer

Vitamin D

Question 11

Which of the following best describes the process of endochondral ossification?

Accepted Answer

Bone replaces a pre-existing cartilage model

Question 12

What is the role of the epiphyseal line in bone growth?

Accepted Answer

It marks the location where bone lengthening has ceased

Question 13

Which of the following is a real-world consequence of osteoporosis?

Accepted Answer

Increased risk of fractures

Question 14

During bone repair, which step occurs first?

Accepted Answer

Formation of a hematoma

Question 15

Which bone shape is exemplified by the femur?

Accepted Answer

Long bone

Question 16

Which anatomical feature is found at the superior end of a long bone?

Accepted Answer

Epiphysis

Question 17

What is the difference between appositional and interstitial bone growth?

Accepted Answer

Appositional growth increases bone width; interstitial growth increases bone length.

Question 18

Which of the following nutrients is essential for collagen synthesis in bone?

Accepted Answer

Vitamin C

Question 19

Which bone marking serves as a site for muscle attachment?

Accepted Answer

Tuberosity

Question 20

Which of the following best describes bone remodeling?

Accepted Answer

The continuous process of bone formation and resorption

Skeletal System: Structure, Function, and Physiology Study Guide

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