$$\text{Bone mass} = \text{Initial mass} + k \times \text{Mechanical stress}$$

$$\text{Bone matrix} = \text{Collagen fibers} + \text{Ca}_3(\text{PO}_4)_2$$

Question 1

Which of the following best describes the process of hematopoiesis?

Accepted Answer

The production of blood cells within the red bone marrow.

Question 2

A patient presents with a fracture where the bone is broken into several pieces. Which type of fracture is this?

Accepted Answer

Comminuted fracture

Question 3

Which bone cell is primarily responsible for bone resorption, and what enzyme does it use to break down the inorganic matrix?

Accepted Answer

Osteoclast; acid phosphatase

Question 4

During endochondral ossification, what is the correct sequence of events?

Accepted Answer

Cartilage model forms, bony collar develops, primary ossification center forms, vascular invasion occurs.

Question 5

Which hormone increases blood calcium levels by stimulating osteoclast activity, and what is the effect on the kidneys?

Accepted Answer

Parathyroid hormone; increases calcium reabsorption in the kidneys

Question 6

Which bone marking is a projection that serves as a site for muscle or ligament attachment?

Accepted Answer

Tuberosity

Question 7

A child with vitamin D deficiency is likely to develop which bone disease, and what is the primary defect?

Accepted Answer

Rickets; poor mineralization of bone matrix

Question 8

Which equation best represents the relationship between bone mass and mechanical stress according to Wolff’s law?

Accepted Answer

$$	ext{Bone mass} = 	ext{Initial mass} + k 	imes 	ext{Mechanical stress}$$

Question 9

Which of the following is NOT a function of bone?

Accepted Answer

Protein synthesis

Question 10

A long bone's diaphysis contains which of the following structures?

Accepted Answer

Epiphyseal line, medullary cavity, compact bone, yellow bone marrow

Question 11

Which type of cartilage is found at the articular surfaces of long bones?

Accepted Answer

Hyaline cartilage

Question 12

A patient with osteoporosis is at increased risk for which type of fracture, and why?

Accepted Answer

Compression fracture; decreased bone density weakens vertebrae

Question 13

Which bone cell is derived from mesenchyme and is responsible for producing osteoid?

Accepted Answer

Osteoblast

Question 14

During the healing of a fracture, which stage involves the formation of fibrocartilage?

Accepted Answer

Soft callus

Question 15

Which of the following best describes the microscopic structure of compact bone?

Accepted Answer

Osteons with concentric lamellae and central canals

Question 16

Which equation represents the mineral composition of bone matrix?

Accepted Answer

$$	ext{Bone matrix} = 	ext{Collagen fibers} + 	ext{Ca}_3(	ext{PO}_4)_2$$

Question 17

Which bone marking is a depression that allows blood vessels or nerves to pass through?

Accepted Answer

Foramen

Question 18

Which hormone is released in response to high blood calcium levels and what is its effect on bone?

Accepted Answer

Calcitonin; increases bone deposition

Question 19

Which bone shape is exemplified by the vertebrae, and what is its classification?

Accepted Answer

Irregular bone; axial skeleton

Question 20

A 12-year-old child is experiencing rapid growth in height. Which process is primarily responsible for this, and where does it occur?

Accepted Answer

Interstitial growth; epiphyseal plate

Osseous Tissue: Structure, Function, and Development

Study Guide - Practice Questions