Question 1

Which of the following is a function of the skeletal system?

Accepted Answer

Support and protection of internal organs

Question 2

Which bone feature is responsible for housing bone marrow and is crucial for hematopoiesis?

Accepted Answer

Medullary cavity

Question 3

What is the primary difference between organic and inorganic components of bone matrix?

Accepted Answer

Organic components consist mainly of collagen fibers, while inorganic components are primarily hydroxyapatite crystals.

Question 4

Which cell type is responsible for bone resorption during bone remodeling?

Accepted Answer

Osteoclasts

Question 5

A patient presents with a fracture in the shaft of the femur. Which type of bone is primarily affected?

Accepted Answer

Long bone

Question 6

Which process describes bone formation from a cartilage model, as seen in the development of long bones?

Accepted Answer

Endochondral ossification

Question 7

During bone growth, which hormone is primarily responsible for stimulating growth at the epiphyseal plate?

Accepted Answer

Growth hormone

Question 8

Which gland produces parathyroid hormone, which is involved in bone remodeling?

Accepted Answer

Parathyroid gland

Question 9

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

Accepted Answer

Compact bone is dense and organized into osteons, while spongy bone consists of a network of trabeculae.

Question 10

A deficiency in which nutritional factor is most likely to result in decreased bone mineralization and increased risk of fractures?

Accepted Answer

Vitamin D

Question 11

Which joint type allows for the greatest range of motion?

Accepted Answer

Ball and socket

Question 12

Which of the following is NOT a component of a synovial joint?

Accepted Answer

Epiphyseal plate

Question 13

Which movement describes turning the palm upward?

Accepted Answer

Supination

Question 14

Which sinus is located in the forehead region and is commonly involved in sinusitis?

Accepted Answer

Frontal sinus

Question 15

A patient suffers a bone fracture. What is the correct sequence of events in bone fracture repair?

Accepted Answer

Hematoma formation, fibrocartilaginous callus formation, bony callus formation, bone remodeling

Question 16

Which equation best represents the relationship between calcium homeostasis and bone remodeling?

Accepted Answer

$$Ca^{2+}$$_{blood} = $$Ca^{2+}$$_{intake} - $$Ca^{2+}$$_{excretion} + $$Ca^{2+}$$_{bone~resorption} - $$Ca^{2+}$$_{bone~deposition}$$

Question 17

Which of the following best describes the function of the Haversian (central) canal in compact bone?

Accepted Answer

It houses blood vessels and nerves that supply the osteon.

Question 18

Which type of joint is found between the vertebrae and allows for limited movement?

Accepted Answer

Amphiarthrosis

Question 19

A child is diagnosed with rickets, a disease characterized by soft and weak bones. Which factor is most likely deficient?

Accepted Answer

Vitamin D

Question 20

Which anatomical term describes a small, rounded projection on a bone, often serving as an attachment site for tendons or ligaments?

Accepted Answer

Tubercle

Study Guide: The Skeletal System (Anatomy & Physiology)

Study Guide - Practice Questions