Question 1

Which of the following best describes the primary function of axial muscles?

Accepted Answer

They support and position the axial skeleton, including the head and spinal column.

Question 2

A muscle with fascicles arranged at an angle to the tendon, allowing for more fibers and greater tension, is classified as which type?

Accepted Answer

Pennate muscle

Question 3

Which muscle type is most likely to act as a sphincter, regulating the diameter of an opening?

Accepted Answer

Circular muscle

Question 4

If a muscle is named 'biceps brachii,' what does the term 'biceps' indicate?

Accepted Answer

It has two origins (heads).

Question 5

Which of the following is an example of a muscle acting as a synergist during elbow flexion?

Accepted Answer

Brachioradialis

Question 6

A muscle named 'flexor carpi radialis' most likely performs which action?

Accepted Answer

Flexes the wrist on the radial side

Question 7

Which of the following statements about muscle levers is correct?

Accepted Answer

A muscle attached farther from the joint produces more force but less speed.

Question 8

Which muscle terminology indicates a muscle is located toward the surface of the body?

Accepted Answer

Superficial

Question 9

A patient is unable to extend their elbow. Which muscle is most likely impaired?

Accepted Answer

Triceps brachii

Question 10

Which of the following best describes the action of an antagonist muscle?

Accepted Answer

It opposes the action of the agonist.

Question 11

Which muscle name indicates a muscle is the largest in its group?

Accepted Answer

Maximus

Question 12

A muscle with fascicles running parallel to the long axis of the muscle is best suited for which function?

Accepted Answer

Producing the greatest range of motion

Question 13

Which of the following muscle names indicates a triangular shape?

Accepted Answer

Deltoid

Question 14

If a muscle is described as 'rectus,' what does this indicate about its fascicle arrangement?

Accepted Answer

The fascicles run straight, parallel to the long axis.

Question 15

Which of the following is a real-life example of a muscle acting as a fixator?

Accepted Answer

The rotator cuff muscles stabilizing the scapula during arm movements

Question 16

A muscle named 'adductor magnus' is most likely to:

Accepted Answer

Move a limb toward the midline and is large

Question 17

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

Accepted Answer

Axial muscles support and position the axial skeleton, while appendicular muscles stabilize or move the limbs.

Question 18

Which muscle terminology would indicate a muscle is located in the wrist region?

Accepted Answer

Carpi

Question 19

A muscle named 'extensor digitorum' most likely:

Accepted Answer

Extends the fingers

Question 20

Which of the following best explains why pennate muscles can generate more tension than parallel muscles of the same size?

Accepted Answer

Pennate muscles have more muscle fibers packed into the same volume.

The Muscular System: Functional Organization and Terminology

Study Guide - Practice Questions