Question 1

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

Accepted Answer

Hormone secretion

Question 2

Cartilage is classified as which type of tissue?

Accepted Answer

Connective tissue

Question 3

Which cell type is responsible for producing the matrix in cartilage?

Accepted Answer

Chondroblasts

Question 4

Which of the following is a component of the bone matrix?

Accepted Answer

Hydroxyapatite

Question 5

During bone development, which process involves the formation of bone from a cartilage model?

Accepted Answer

Endochondral ossification

Question 6

Which structure is found in the diaphysis of a long bone and contains yellow marrow?

Accepted Answer

Medullary cavity

Question 7

Which of the following best describes woven bone?

Accepted Answer

Bone tissue with randomly oriented collagen fibers

Question 8

A patient presents with a bone fracture where the bone fragments are in multiple pieces. What is the classification of this fracture?

Accepted Answer

Comminuted

Question 9

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 10

During bone repair, what is the correct sequence of events?

Accepted Answer

Hematoma formation, callus formation, callus ossification, bone remodeling

Question 11

Which anatomical structure covers the outer surface of a bone and is essential for bone growth and repair?

Accepted Answer

Periosteum

Question 12

Which of the following best explains why bone length increases during adolescence?

Accepted Answer

Cartilage production at the epiphyseal plate equals the rate of ossification

Question 13

Which of the following is a direct effect of parathyroid hormone (PTH) on bone?

Accepted Answer

Stimulates osteoclasts to break down bone matrix

Question 14

A 12-year-old child suffers a fracture at the epiphyseal plate. What is the most significant long-term risk associated with this injury?

Accepted Answer

Disrupted bone growth and potential limb length discrepancy

Question 15

Which of the following best describes the role of calcitonin in calcium homeostasis?

Accepted Answer

Decreases blood calcium by inhibiting osteoclast activity

Question 16

Which structure in compact bone contains concentric lamellae and a central canal?

Accepted Answer

Osteon

Question 17

Which process is responsible for the formation of flat bones such as those of the skull?

Accepted Answer

Intramembranous ossification

Question 18

If the rate of cartilage production at the epiphyseal plate is less than the rate of ossification, what will happen to bone length?

Accepted Answer

Bone length will decrease or growth will stop

Question 19

Which of the following is a real-life consequence of impaired bone remodeling?

Accepted Answer

Increased risk of bone fractures due to accumulation of microdamage

Question 20

A patient with low blood calcium is given a medication that mimics the action of parathyroid hormone (PTH). Which equation best represents the expected change in blood calcium concentration ($$[Ca$$^{2+}$$]) $$over time ($$t$$)?

Accepted Answer

$$\frac{d[Ca$$^{2+}$$]}{dt} \u003e 0$$

Skeletal System: Structure, Function, and Physiology

Study Guide - Practice Questions

Study Guide - Flashcards