Question 1

Which muscle acts as the prime mover during elbow flexion?

Accepted Answer

Brachialis

Question 2

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

Accepted Answer

Quadriceps femoris

Question 3

Which muscle acts as a synergist during elbow flexion?

Accepted Answer

Biceps brachii

Question 4

What is the function of intercostal muscles?

Accepted Answer

Breathing by expanding and contracting the chest cavity

Question 5

Which muscle is responsible for puckering the lips?

Accepted Answer

Orbicularis oris

Question 6

A tendon is best described as:

Accepted Answer

A fibrous connective tissue that connects muscle to bone

Question 7

Which muscle is an antagonist during elbow flexion?

Accepted Answer

Triceps brachii

Question 8

Which of the following is NOT a function of the pelvic floor muscles?

Accepted Answer

Flex the elbow

Question 9

Which muscle is involved in blinking the eyes?

Accepted Answer

Orbicularis oculi

Question 10

Which of the following muscles is located on the posterior thigh and is active when bending the knee during running?

Accepted Answer

Hamstrings

Question 11

Which of the following is a correct description of an aponeurosis?

Accepted Answer

A broad, flat sheet-like connective tissue

Question 12

If a muscle acts as a fixator, what is its primary function?

Accepted Answer

To prevent a bone from moving

Question 13

Which of the following muscles is a prime mover for jaw closure?

Accepted Answer

Temporalis

Question 14

Which muscle shape is described as 'triangular'?

Accepted Answer

Deltoid

Question 15

Which of the following muscles is NOT part of the quadriceps femoris group?

Accepted Answer

Biceps femoris

Question 16

A muscle that runs diagonally external to the abdomen is called:

Accepted Answer

External abdominal oblique

Question 17

Which of the following is a correct formula for calculating muscle force ($F$) given mass ($m$) and acceleration ($a$)?

Accepted Answer

$F = m 	imes a$

Question 18

If the biceps brachii and brachialis contract together to flex the elbow, what type of muscle interaction is this?

Accepted Answer

Synergistic

Question 19

Which structure connects muscle to bone and is commonly injured in athletes with 'tendinitis'?

Accepted Answer

Tendon

Question 20

Which muscle is responsible for smiling?

Accepted Answer

Zygomaticus major

Study Guide: The Muscular System (Anatomy & Physiology)

Study Guide - Practice Questions