Muscles and Their Actions Quiz

What action does the frontalis muscle perform?

• Raises eyebrows

• Pulls scalp posteriorly

• Closes lips

• Closes eye

What action does the occipitalis muscle perform?

• Raises eyebrows

• Pulls scalp posteriorly

• Closes lips

• Closes eye

What action does the orbicularis oris muscle perform?

• Closes lips

• Closes eye

• Raises corner of mouth

• Flexes neck; rotates head

What action does the orbicularis oculi muscle perform?

• Closes lips

• Closes eye

• Raises corner of mouth

• Flexes neck; rotates head

What action does the zygomaticus muscle perform?

• Raises corner of mouth

• Closes lips

• Closes eye

• Pulls scalp posteriorly

What action does the temporalis muscle perform?

• Closes jaw

• Flexes neck; rotates head

• Tenses skin of the neck

• Raises eyebrows

What action does the sternocleidomastoid muscle perform?

• Flexes neck; rotates head

• Closes jaw

• Tenses skin of the neck

• Raises eyebrows

What action does the platysma muscle perform?

• Tenses skin of the neck; helps depress mandible

• Closes jaw

• Flexes neck; rotates head

• Raises eyebrows

What action does the trapezius muscle perform?

• Shrugs shoulders

• Closes jaw

• Flexes neck; rotates head

• Tenses skin of the neck

What action does the latissimus dorsi muscle perform?

• Extends and adducts humerus

• Abducts arm

• Adducts and flexes humerus

• Compresses cheek