The Muscular System Y1Q2

Skeletal muscles comprise about ______of the mass of the average human body.

• 20%

• 40%

• 60%

• 80%

What kind of fibers are muscles made of?

• elastic

• protein

• fatty

• muscle

Which of the following is NOT a function of the muscular system?

• Produce heat

• Produce movement

• Maintain posture

• To produce blood cells

You contract this type of muscle when you want to move. They are also known as skeletal muscles.

• Voluntary

• Involuntary

• Cardiac

• Tendon

This type of muscle makes up the stomach, uterus and eyes.

• Voluntary

• Involuntary

• Cardiac

• Tendon

These tissues connect muscle to bone.

• tendons

• ligaments

• joints

• sutures

Which type of muscle tissue forms the muscular wall of the heart:

• smooth

• myocardial

• visceral

• skeletal

Another term for the smooth muscles that form the walls of the internal organs of the body.

• internal muscles

• visceral muscles

• digestive muscles

• diaphragm

Moving a body part away from the midline

• adduct

• abduct

• extend

• flex

Moving a body part toward the midline

• adduct

• abduct

• extend

• flex