Exam 15: Axial Muscles

Match each feature with the muscles named by that feature. -Triceps

The orbicularis oris surrounds the eye and allows you to blink.

Match each body location with its corresponding muscle. -Adductor magnus

Antagonist muscles oppose the movement of the agonist muscle.

Skeletal muscles constitute approximately ____ of our body weight.

The two parts of the epicranium are connected by an aponeurosis.

A set of scales and a pair of scissors are both examples of second-class levers.

Just as individual bones are the organs of the skeletal system, individual muscles are the organs of the muscular system.

No muscles are both muscles of facial expression and muscles of mastication.

First- and second-class levers are not as common in the body as third-class levers.

Match each muscle with the corresponding description of its action. -Close(s) the eye

Muscles make up about 30% to 40% of our body weight.

When a muscle contracts, the part of the body that moves is directly under the belly of the muscle.

The sartorius is an example of a unipennate muscle.

The type of lever arrangement in which the pull is exerted between the fulcrum and resistance or weight to be moved is a _____-class lever.

The muscles that move the head are paired muscles on opposite sides of the body.

The muscles of facial expression are unique in that at least one of their points of attachment is to the deep layers of skin over the face or neck.

Movement is one of the most distinctive and easily observed "characteristics of life."

Match each muscle with the corresponding description of its action. -Raise(s) the eyebrows (surprise)

Match each feature with the muscles named by that feature. -Adductors