Question 1

Which of the following best describes the primary function of red bone marrow in adults?

Accepted Answer

Formation of blood cells (hematopoiesis)

Question 2

A patient presents with a fracture in the shaft of their femur. Which anatomical term best describes this region of the bone?

Accepted Answer

Diaphysis

Question 3

Which of the following equations correctly represents the chemical formula for hydroxyapatite, the main inorganic component of bone matrix?

Accepted Answer

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

Question 4

Which bone cell type is primarily responsible for bone resorption, and what is its origin?

Accepted Answer

Osteoclast; derived from hematopoietic stem cells

Question 5

During endochondral ossification, what is the fate of the hyaline cartilage model?

Accepted Answer

It is replaced by bone tissue after being broken down and calcified.

Question 6

Which hormone is primarily responsible for stimulating both longitudinal and appositional bone growth during childhood?

Accepted Answer

Growth hormone

Question 7

A 14-year-old male experiences a rapid increase in height and bone thickness. Which hormone is most likely responsible for this 'growth spurt'?

Accepted Answer

Testosterone

Question 8

Which of the following best explains why bones become brittle and shatter easily if their organic matrix is removed?

Accepted Answer

They lose their flexibility and ability to resist tension.

Question 9

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

Accepted Answer

Hematoma formation → Soft callus formation → Bone callus formation → Bone remodeling

Question 10

Which type of bone is best described as a small, flat, oval-shaped bone found within tendons, and what is a common example?

Accepted Answer

Sesamoid bone; patella

Question 11

Which of the following best describes the role of osteocytes in bone tissue?

Accepted Answer

They maintain the bone matrix and monitor mechanical stress.

Question 12

A patient with osteoporosis is at increased risk for which of the following?

Accepted Answer

Decreased bone mass and increased risk of fractures

Question 13

Which of the following best describes appositional growth of bone?

Accepted Answer

Growth in width by addition of new bone at the periosteum

Question 14

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

Accepted Answer

Regulation of blood glucose levels

Question 15

Which of the following best describes the difference between compact and spongy bone?

Accepted Answer

Compact bone is dense and resists compression, while spongy bone is porous and resists forces from multiple directions.

Question 16

Which of the following best explains why the epiphyseal plate is important during childhood and adolescence?

Accepted Answer

It is the site of longitudinal bone growth.

Question 17

Which of the following is a correct description of a comminuted fracture?

Accepted Answer

A fracture in which the bone is shattered into multiple fragments

Question 18

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

Accepted Answer

It surrounds the outside of bone, contains blood vessels and nerves, and is anchored by perforating fibers.

Question 19

Which of the following best describes the process of bone remodeling in response to mechanical stress?

Accepted Answer

Bone deposition increases in areas exposed to compression and tension.

Question 20

Which of the following is a function of calcium ions stored in bone?

Accepted Answer

Transmission of nerve impulses

Bones and Bone Tissue: Structure, Function, and Microscopic Anatomy

Study Guide - Practice Questions