Question 1

Which of the following best describes the difference between a tendon and a ligament?

Accepted Answer

A tendon connects muscle to bone, while a ligament connects bone to bone.

Question 2

Which muscle type is responsible for voluntary movements of the body?

Accepted Answer

Skeletal muscle

Question 3

What is the primary function of the agonist in a muscle functional group?

Accepted Answer

To produce the main movement

Question 4

Which of the following best describes the origin of a muscle?

Accepted Answer

The point where the muscle attaches to the bone that remains stationary during contraction

Question 5

Which muscle group is primarily responsible for flexion at the elbow joint?

Accepted Answer

Biceps brachii

Question 6

A patient is unable to abduct their arm at the shoulder joint. Which muscle is most likely impaired?

Accepted Answer

Deltoid

Question 7

Which of the following muscles is involved in mastication (chewing)?

Accepted Answer

Masseter

Question 8

Which muscle is the primary agonist for extension of the forearm at the elbow joint?

Accepted Answer

Triceps brachii

Question 9

Which of the following best describes the role of a synergist muscle?

Accepted Answer

It assists the agonist by adding extra force or reducing unnecessary movement.

Question 10

Which muscle is primarily responsible for inspiration during quiet breathing?

Accepted Answer

Diaphragm

Question 11

A muscle that moves a bone away from the midline is called a(n):

Accepted Answer

Abductor

Question 12

Which of the following is a function of the fixator muscle in a functional group?

Accepted Answer

To stabilize the origin of the agonist

Question 13

Which muscle is primarily responsible for flexion of the thigh at the hip joint?

Accepted Answer

Iliopsoas

Question 14

Which of the following best describes the perimysium?

Accepted Answer

A connective tissue layer that surrounds bundles of muscle fibers (fascicles)

Question 15

Which muscle is primarily responsible for extension of the leg at the knee joint?

Accepted Answer

Quadriceps femoris

Question 16

Which of the following muscles is involved in producing facial expressions?

Accepted Answer

Orbicularis oris

Question 17

A patient presents with difficulty extending their forearm. Which muscle is most likely affected?

Accepted Answer

Triceps brachii

Question 18

Which of the following best describes the action of the adductor muscle group in the thigh?

Accepted Answer

Moving the thigh toward the midline

Question 19

Which connective tissue layer surrounds individual muscle fibers?

Accepted Answer

Endomysium

Question 20

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

Accepted Answer

Pumping blood through the heart

The Muscular System: Structure, Function, and Key Muscles

Study Guide - Practice Questions