Muscular System Test Review

The covering of individual muscle fibers is the

• Epimysium

• Endomysium

• Periosteum

• Perimysium

Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the:

• endomysium

• perimysium

• epimysium

• aponeurosis

Muscles that contract at the same time as the prime mover are called:

• Synergists

• Fixators

• Antagonists

• Synergists & Fixators

Muscles may be named according to:

• function

• direction of fibers

• points of attachment

• all of the above

The muscle that raises the eyebrows and wrinkles the forehead is the

• Epicranius

• Frontalis

• Orbicularis Oculi

• Orbicularis Oris

The muscle that extends and adducts the upper arm is the

• deltoid

• latissimus dorsi

• trapezius

• pectoralis minor

The posterior arm muscle that extends the forearm is the

• biceps brachii

• triceps brachii

• supinator

• brachialis

The action of the brachialis muscle is to

• flex the forearm

• extend the forearm

• pronate the forearm

• supinate the forearm

A muscle is attached to the femur and tibia. Its function is to bend the knee. When it contracts, it is acting as the:

• prime mover

• antagonist

• fixator

• synergist

There are more than ______ muscles in the body.

• 1200

• 900

• 600

• 1000