Question 1

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

Accepted Answer

Hormone production

Question 2

A patient presents with low blood calcium levels. Which process in bone tissue is most likely to be stimulated to restore homeostasis?

Accepted Answer

Osteoclast activity to increase bone resorption

Question 3

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

Accepted Answer

Compact bone contains osteons, while spongy bone contains trabeculae

Question 4

Which structure is responsible for the longitudinal growth of long bones during childhood and adolescence?

Accepted Answer

Epiphyseal plate

Question 5

A 12-year-old patient suffers a fracture at the distal radius. Which type of bone cell will be most active during the initial phase of bone healing?

Accepted Answer

Chondrocytes

Question 6

Which equation correctly represents the relationship between bone mass, mineral deposition, and resorption?

Accepted Answer

$$Bone\ mass = Mineral\ deposition - Mineral\ resorption$$

Question 7

Which hormone is primarily responsible for increasing blood calcium levels by stimulating bone resorption?

Accepted Answer

Parathyroid hormone (PTH)

Question 8

Which of the following is a synarthrosis joint?

Accepted Answer

Suture between skull bones

Question 9

A patient is unable to perform plantar flexion. Which joint and movement are most likely affected?

Accepted Answer

Ankle joint; movement of the foot downward

Question 10

Which of the following bones is part of the axial skeleton?

Accepted Answer

Sternum

Question 11

Which anatomical feature allows for the passage of the olfactory nerves from the nasal cavity to the brain?

Accepted Answer

Cribriform plate of the ethmoid bone

Question 12

Which of the following correctly matches the bone with its function?

Accepted Answer

Ribs: facilitate breathing by expanding the thoracic cavity

Question 13

Which movement is defined as moving a limb away from the midline of the body?

Accepted Answer

Abduction

Question 14

Which of the following is a structural feature of a synovial joint?

Accepted Answer

Presence of a joint cavity filled with synovial fluid

Question 15

A patient with osteoporosis is at increased risk for fractures due to which of the following changes in bone tissue?

Accepted Answer

Decreased bone mineral density

Question 16

Which equation best represents the process of endochondral ossification?

Accepted Answer

$$Cartilage \rightarrow Bone$$

Question 17

Which of the following bones is classified as an irregular bone?

Accepted Answer

Vertebra

Question 18

Which of the following best describes the role of the periosteum?

Accepted Answer

It covers the outer surface of bone and contains osteogenic cells

Question 19

Which of the following is a correct example of a fibrous joint?

Accepted Answer

Suture between cranial bones

Question 20

A patient presents with limited rotation of the head. Which joint is most likely affected?

Accepted Answer

Atlantoaxial joint

Skeletal System: Structure, Function, and Classification Study Notes

Study Guide - Practice Questions