Question 1

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

Accepted Answer

Production of digestive enzymes

Question 2

A patient presents with a fracture in the diaphysis of the femur. Which type of bone tissue primarily makes up this region?

Accepted Answer

Compact bone

Question 3

Which bone cell is responsible for bone resorption, and what is the process called?

Accepted Answer

Osteoclast; osteolysis

Question 4

During endochondral ossification, which tissue is replaced by bone?

Accepted Answer

Hyaline cartilage

Question 5

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 6

A deficiency in Vitamin D would most directly impair which process in the skeletal system?

Accepted Answer

Ossification

Question 7

Which of the following best describes the periosteum?

Accepted Answer

A fibrous connective tissue membrane covering the outer surface of bone

Question 8

Which type of bone is characterized by thin, parallel surfaces and includes the sternum and scapulae?

Accepted Answer

Flat bones

Question 9

If a patient has a disorder affecting osteoblast function, which process would be most directly impaired?

Accepted Answer

Bone formation (ossification)

Question 10

Which of the following equations best represents the relationship between calcium homeostasis and bone activity?

Accepted Answer

$$Ca^{2+}$$_{blood} = $$Ca^{2+}$$_{released\ from\ bone} - $$Ca^{2+}$$_{deposited\ in\ bone}$$

Question 11

Which bone cell type is primarily responsible for maintaining the bone matrix?

Accepted Answer

Osteocyte

Question 12

A patient with osteoporosis is experiencing increased bone fragility. Which cellular activity is most likely increased?

Accepted Answer

Osteoclast activity

Question 13

Which process describes the formation of bone from a fibrous membrane, primarily occurring in flat bones?

Accepted Answer

Intramembranous ossification

Question 14

Which region of a long bone contains the epiphyseal plate responsible for growth in length?

Accepted Answer

Metaphysis

Question 15

Which of the following best explains why bones act as levers in the body?

Accepted Answer

They provide attachment points for muscles, allowing movement when muscles contract

Question 16

A nurse is assessing a patient’s bone healing after a fracture. Which sequence best describes the steps of bone repair?

Accepted Answer

Hematoma formation, callus formation, spongy bone formation, compact bone formation

Question 17

Which equation best represents the process of bone remodeling in response to mechanical stress?

Accepted Answer

$$Bone\ mass_{new} = Bone\ mass_{old} + (Osteoblast\ activity - Osteoclast\ activity)$$

Question 18

Which of the following is a correct pairing of bone type and example?

Accepted Answer

Irregular bone – vertebra

Question 19

Which of the following best describes appositional growth in bones?

Accepted Answer

Growth in diameter/thickness by addition of new bone at the surface

Question 20

A patient with low blood calcium is given calcitriol. What is the expected physiological effect?

Accepted Answer

Increased calcium absorption in the intestines

Skeletal System: Structure, Function, and Skeletal Tissue

Study Guide - Practice Questions