Question 1

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

Accepted Answer

Production of blood cells through hematopoiesis

Question 2

A patient presents with brittle bones that fracture easily. Laboratory tests reveal a deficiency in the inorganic matrix of bone. Which mineral is most likely deficient in this patient?

Accepted Answer

Calcium

Question 3

Which hormone is primarily responsible for increasing blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 4

During endochondral ossification, what is the first step in the transformation of the hyaline cartilage model into bone?

Accepted Answer

Chondroblasts in the perichondrium differentiate into osteoblasts

Question 5

Which of the following best explains why weight-bearing exercise is recommended to prevent osteoporosis?

Accepted Answer

It stimulates bone deposition by increasing osteoblast activity

Question 6

A 14-year-old male experiences a growth spurt. Which hormone is most likely responsible for the increased mitosis at his epiphyseal plates?

Accepted Answer

Testosterone

Question 7

Which of the following is a distinguishing feature of compact bone compared to spongy bone?

Accepted Answer

Presence of osteons (Haversian systems)

Question 8

A patient with a vitamin D deficiency is most likely to experience which of the following symptoms?

Accepted Answer

Bone deformities and muscle weakness

Question 9

Which of the following best describes the role of osteoclasts in bone remodeling?

Accepted Answer

They break down bone matrix by secreting hydrogen ions and enzymes

Question 10

A fracture that results in the bone breaking through the skin is classified as which type of fracture?

Accepted Answer

Compound (open) fracture

Question 11

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

Accepted Answer

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

Question 12

Which of the following best describes the process of appositional growth in bones?

Accepted Answer

Growth in width by addition of new bone at the periosteum

Question 13

A patient with achondroplasia has a mutation affecting which process?

Accepted Answer

Endochondral ossification

Question 14

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

Accepted Answer

Synthesis of hormones

Question 15

Which of the following best explains why osteoporotic bone is more likely to fracture?

Accepted Answer

It has inadequate inorganic matrix, making it brittle

Question 16

Which of the following best describes the role of the periosteum in bone structure?

Accepted Answer

It covers the outer surface of bone and contains blood vessels and nerves

Question 17

Which of the following statements about the epiphyseal plate is correct?

Accepted Answer

It is responsible for longitudinal bone growth during childhood

Question 18

A patient is recovering from a bone fracture. Which of the following steps occurs first during bone repair?

Accepted Answer

Formation of a hematoma at the fracture site

Question 19

Which of the following best describes the function of canaliculi in compact bone?

Accepted Answer

They connect lacunae and allow communication between osteocytes

Question 20

Which of the following nutrients is required for the synthesis of collagen in the bone matrix?

Accepted Answer

Vitamin C

Study Guide: The Skeletal System (ANP College Level)

Study Guide - Practice Questions

Study Guide - Flashcards