Question 1

Which of the following best describes the difference between the epiphysis and diaphysis of a long bone?

Accepted Answer

The epiphysis contains red bone marrow and is involved in joint articulation, while the diaphysis is the shaft containing the medullary cavity.

Question 2

Which of the following correctly matches the bone cell with its primary function?

Accepted Answer

Osteocyte: maintenance of bone matrix

Question 3

A patient presents with a fracture. Which of the following correctly lists the four steps of bone repair in order?

Accepted Answer

Hematoma formation, fibrocartilaginous callus formation, bony callus formation, bone remodeling

Question 4

Which hormone is primarily responsible for increasing blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 5

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

Accepted Answer

It covers the outer surface of bone, contains osteoblasts and osteoclasts, and serves as an attachment site for tendons and ligaments.

Question 6

A 65-year-old woman is diagnosed with osteoporosis. Which of the following statements about osteoporosis is correct?

Accepted Answer

Osteoporosis results from an imbalance between bone resorption and bone formation, leading to fragile bones.

Question 7

Which of the following is NOT a functional component of a synovial joint?

Accepted Answer

Periosteum

Question 8

A patient with rheumatoid arthritis is experiencing joint pain and swelling. Which of the following best explains the underlying pathology?

Accepted Answer

Autoimmune attack on the synovial membrane leading to inflammation

Question 9

Which of the following best describes Wolff's Law?

Accepted Answer

Bone adapts to the loads under which it is placed, increasing in strength with increased stress.

Question 10

During endochondral ossification, which of the following events occurs first?

Accepted Answer

Development of a cartilage model

Question 11

Which of the following best explains why tendons and ligaments are more vulnerable to injury than bone?

Accepted Answer

They have a poor blood supply, which slows healing.

Question 12

A 30-year-old athlete suffers a sprain. Which of the following best defines a sprain?

Accepted Answer

A stretching or tearing of ligaments at a joint

Question 13

Which of the following is a key difference between osteoarthritis and rheumatoid arthritis?

Accepted Answer

Osteoarthritis is due to degeneration of articular cartilage, while rheumatoid arthritis is an autoimmune inflammation of the synovial membrane.

Question 14

Which of the following best describes the function of synovial fluid?

Accepted Answer

It provides nutrients to articular cartilage and reduces friction between joint surfaces.

Question 15

Which of the following equations best represents the relationship between bone mass, bone formation, and bone resorption?

Accepted Answer

$$\Delta M = F - R$$

Question 16

Which of the following is true regarding the Haversian system (osteon)?

Accepted Answer

It consists of concentric lamellae surrounding a central canal containing blood vessels and nerves.

Question 17

A child is experiencing stunted growth due to a hormonal imbalance. Which hormone deficiency is most likely responsible for this condition?

Accepted Answer

Growth hormone

Question 18

Which of the following best describes the difference between intramembranous and endochondral ossification?

Accepted Answer

Intramembranous ossification forms flat bones directly from mesenchyme, while endochondral ossification replaces a cartilage model with bone.

Question 19

Which of the following best describes bone remodeling?

Accepted Answer

It is the continuous process of bone resorption and formation throughout life, allowing bones to adapt to stress.

Question 20

A patient with a vitamin D deficiency is likely to experience which of the following effects on bone homeostasis?

Accepted Answer

Decreased calcium absorption, leading to weaker bones and increased risk of fractures

Anatomy & Physiology: Bone Structure, Homeostasis, and Joints – Study Guide

Study Guide - Practice Questions