Question 1

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

Accepted Answer

Production of hormones such as insulin

Question 2

A patient presents with a fracture in the diaphysis of their femur. Which part of the long bone is affected?

Accepted Answer

The shaft of the bone

Question 3

Which type of bone cell is primarily responsible for breaking down bone matrix during bone remodeling?

Accepted Answer

Osteoclast

Question 4

A child is diagnosed with rickets, a disease characterized by soft bones. Which function of bone is most directly impaired in this condition?

Accepted Answer

Mineral storage, especially of calcium and phosphate

Question 5

Which of the following best describes the difference between the axial and appendicular skeleton?

Accepted Answer

The axial skeleton includes the skull, vertebral column, and rib cage, while the appendicular skeleton includes the limbs and girdles.

Question 6

During endochondral ossification, which tissue is replaced by bone?

Accepted Answer

Hyaline cartilage

Question 7

A patient with leukemia is undergoing a bone marrow transplant. Which part of the long bone is most likely to be targeted for harvesting red bone marrow?

Accepted Answer

Epiphysis

Question 8

Which of the following joints allows for the greatest range of motion?

Accepted Answer

Ball-and-socket joint

Question 9

Which muscle property allows a muscle to return to its original length after being stretched?

Accepted Answer

Elasticity

Question 10

A patient is unable to smile or frown due to nerve damage. Which group of muscles is most likely affected?

Accepted Answer

Muscles of facial expression

Question 11

Which of the following best describes the role of the neuromuscular junction?

Accepted Answer

It is the site where a motor neuron communicates with a muscle fiber to initiate contraction.

Question 12

Which equation best represents the relationship between force, muscle cross-sectional area, and muscle tension?

Accepted Answer

$$F = \sigma \cdot A$$

Question 13

A soccer player tears their anterior cruciate ligament (ACL). Which supportive structure of the skeletal system is damaged?

Accepted Answer

Ligament

Question 14

Which muscle is primarily responsible for inspiration during quiet breathing?

Accepted Answer

Diaphragm

Question 15

Which of the following best describes the difference between origin and insertion of a muscle?

Accepted Answer

The origin is the fixed attachment, while the insertion moves with contraction.

Question 16

A patient is unable to extend their knee after an injury. Which muscle group is most likely affected?

Accepted Answer

Quadriceps group

Question 17

Which of the following best describes the function of smooth muscle?

Accepted Answer

It controls involuntary movements in organs such as the intestines and blood vessels.

Question 18

Which of the following is a property unique to cardiac muscle tissue?

Accepted Answer

It contains intercalated discs for synchronized contraction.

Question 19

A patient with osteoporosis is at increased risk for which of the following?

Accepted Answer

Pathological bone fractures due to decreased bone density

Question 20

Which of the following best explains why the hamstring group is important for walking?

Accepted Answer

They flex the knee and extend the hip during the gait cycle.

Skeletal & Muscular System: Study Guide Notes (Module 3)

Study Guide - Practice Questions

Study Guide - Flashcards