Question 1

Which of the following statements best describes the process of appositional growth in cartilage?

Accepted Answer

New matrix is laid down on the surface of cartilage by cells in the perichondrium, increasing cartilage thickness.

Question 2

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

Accepted Answer

Osteoclast; derived from hematopoietic stem cells

Question 3

A patient presents with a fracture at the distal end of the radius after falling on an outstretched hand. What is the most likely diagnosis?

Accepted Answer

Colles’ fracture

Question 4

Which of the following best explains Wolff’s Law?

Accepted Answer

Bone grows or remodels in response to the mechanical stresses placed upon it.

Question 5

During endochondral ossification, what is the sequence of events at the primary ossification center?

Accepted Answer

Perichondrium becomes periosteum, osteogenic cells become osteoblasts, bone collar forms, cartilage in the center calcifies and deteriorates

Question 6

Which of the following is a function of osteocalcin produced by bone tissue?

Accepted Answer

Protects against obesity and diabetes by influencing energy metabolism

Question 7

A 10-year-old child is diagnosed with rickets. Which of the following best describes the underlying pathology?

Accepted Answer

Poorly mineralized bones due to vitamin D deficiency, leading to pain and deformity

Question 8

Which of the following best describes the structure and function of trabeculae in spongy bone?

Accepted Answer

Trabeculae are honeycomb-like structures aligned along lines of stress, providing strength and housing red marrow.

Question 9

Which of the following equations correctly represents the relationship between calcium homeostasis and bone remodeling?

Accepted Answer

$$Ca^{2+}$$_{blood} \downarrow \Rightarrow$$ bone resorption $$\uparrow$$

Question 10

Which of the following best describes the role of Sharpey’s fibers?

Accepted Answer

They are collagen fibers that secure the periosteum to the underlying bone.

Question 11

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

Accepted Answer

Decreased bone mass due to bone resorption outpacing bone deposition

Question 12

Which of the following is true regarding the difference between red and yellow bone marrow?

Accepted Answer

Yellow marrow stores fat, while red marrow is the site of hematopoiesis.

Question 13

Which of the following best describes the process of bone repair after a simple fracture?

Accepted Answer

A hematoma forms, followed by a fibrocartilaginous callus, then a bony callus, and finally bone remodeling.

Question 14

Which of the following is a distinguishing feature of intramembranous ossification?

Accepted Answer

It forms flat bones of the skull and clavicle directly from mesenchymal tissue.

Question 15

Which of the following best describes the function of the epiphyseal plate during bone growth?

Accepted Answer

It is the site of interstitial growth, allowing bones to lengthen during childhood and adolescence.

Question 16

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

Accepted Answer

Compact bone is dense and forms the outer layer of bones, while spongy bone is porous and found inside bones.

Question 17

Which of the following is a correct sequence of zones in the epiphyseal plate during bone growth?

Accepted Answer

Resting zone → Proliferation zone → Hypertrophic zone → Calcification zone → Ossification zone

Question 18

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

Accepted Answer

They are small channels that connect lacunae, allowing for nutrient and waste exchange between osteocytes.

Question 19

A patient presents with a hunchback appearance. Which spinal abnormality is most likely present?

Accepted Answer

Kyphosis

Bones and Skeletal Tissue: Structure, Function, Development, and Disorders

Study Guide - Practice Questions