Question 1

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

Accepted Answer

Production of hormones

Question 2

Which classification of bone is exemplified by the femur?

Accepted Answer

Long bone

Question 3

Where is spongy bone primarily found in a long bone?

Accepted Answer

In the epiphyses

Question 4

What is the distinguishing feature of spongy bone compared to compact bone?

Accepted Answer

Presence of trabeculae

Question 5

Which cell type is responsible for removing bone matrix during bone remodeling?

Accepted Answer

Osteoclast

Question 6

The basic unit of compact bone is called:

Accepted Answer

Osteon

Question 7

What is the name of the membrane covering the outer surface of bone?

Accepted Answer

Periosteum

Question 8

Which process is responsible for bone growth in length during childhood?

Accepted Answer

Endochondral ossification

Question 9

Which hormone is secreted in response to low blood calcium levels?

Accepted Answer

Parathyroid hormone (PTH)

Question 10

A fracture in which the bone breaks but does NOT penetrate the skin is called:

Accepted Answer

Closed fracture

Question 11

Which condition results from hypersecretion of growth hormone (GH) in childhood?

Accepted Answer

Gigantism

Question 12

Which type of bone formation results from the replacement of a cartilage model?

Accepted Answer

Endochondral ossification

Question 13

Which of the following best describes osteoporosis?

Accepted Answer

A condition characterized by decreased bone mass and increased fracture risk

Question 14

Which set of bones are primarily involved in controlling blood calcium levels?

Accepted Answer

Parathyroid glands and thyroid gland

Question 15

Which of the following is a distinguishing feature of Paget's disease?

Accepted Answer

Disorganized bone remodeling leading to structurally weak bone

Question 16

A patient presents with bowed legs and soft bones due to vitamin D deficiency. What is the most likely diagnosis?

Accepted Answer

Osteomalacia

Question 17

Which equation best represents the relationship between bone mass ($$M$$), bone formation rate ($$F$$), and bone resorption rate ($$R) $$over time?

Accepted Answer

$$M_{final} = M_{initial} + F - R$$

Question 18

During bone healing, which step occurs immediately after the formation of a hematoma?

Accepted Answer

Formation of a fibrocartilaginous callus

Question 19

Which of the following best describes a displaced fracture?

Accepted Answer

Bone ends are out of normal alignment

Question 20

Which process is responsible for bone growth in thickness?

Accepted Answer

Appositional growth

Skeletal System: Structure, Function, and Bone Physiology Study Guide

Study Guide - Practice Questions