Question 1

Which statement best describes the action of skeletal muscles during movement?

Accepted Answer

Skeletal muscles can only pull bones, never push.

Question 2

A muscle located on the anterior side of a joint typically produces which movement?

Accepted Answer

Flexion

Question 3

Which muscle role is responsible for opposing or reversing a particular movement?

Accepted Answer

Antagonist

Question 4

During shoulder flexion, which muscle acts as the prime mover?

Accepted Answer

Pectoralis major

Question 5

If the biceps brachii is the prime mover for elbow flexion, which muscle acts as its antagonist?

Accepted Answer

Triceps brachii

Question 6

Which term describes a muscle that assists the prime mover by adding extra force to the same movement?

Accepted Answer

Synergist

Question 7

A stabilizer muscle is best defined as:

Accepted Answer

A type of synergist that stabilizes bone or muscle rather than enhancing movement.

Question 8

Which muscle fiber arrangement is most powerful due to its short fibers attaching obliquely to a central tendon?

Accepted Answer

Pennate

Question 9

A muscle named 'flexor carpi radialis longus' is likely to:

Accepted Answer

Flex the wrist on the radial side and is long in length

Question 10

Which muscle fiber arrangement allows a muscle to shorten the most?

Accepted Answer

Parallel

Question 11

Given the following muscle names, which one is named for its shape?

Accepted Answer

Deltoid

Question 12

Which of the following is an example of a muscle named for its location?

Accepted Answer

Temporalis

Question 13

A muscle with fibers arranged in concentric rings is classified as:

Accepted Answer

Circular

Question 14

Which muscle would be most likely to act as a stabilizer during shoulder movement?

Accepted Answer

Rotator cuff muscles

Question 15

If a muscle crosses the posterior side of a joint, what movement does it typically produce?

Accepted Answer

Extension

Question 16

Which of the following muscle names indicates the number of origins?

Accepted Answer

Biceps brachii

Question 17

A muscle named 'sternocleidomastoid' attaches to which anatomical structures?

Accepted Answer

Sternum, clavicle, and mastoid process

Question 18

Which muscle fiber arrangement is best suited for generating the greatest force?

Accepted Answer

Pennate

Question 19

If a muscle acts as a prime mover in one movement, what other roles might it play in different movements?

Accepted Answer

It can act as an antagonist or a synergist in other movements.

Question 20

Which equation best represents the relationship between muscle force ($$F$$), cross-sectional area ($$A$$), and muscle fiber arrangement efficiency ($$e$$)?

Accepted Answer

$$F = A 	imes e$$

The Muscular System: Functional Groups, Actions, and Naming of Skeletal Muscles

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