Muscular System (Content) Test

What percentage of our body mass is made up by muscle tissue?

• 20%

• 30%

• 40%

• 60%

What two proteins help muscles to contract?

• Actin

• Myosin

• Dystrophin

• Troponin

• Tropomyosin

Which of the following best describes voluntary muscles? Select ALL that apply

• Muscles that move without conscious effort

• Muscles that humans can consciously move

• EX: Cardiace Muscle

• EX: Skeletal Muscle

• EX: Smooth Muscle

Which of the following best describes involuntary muscles? Select ALL that apply

• Muscles that move without conscious effort

• Muscles that humans can consciously move

• EX: Cardiace Muscle

• EX: Skeletal Muscle

• EX: Smooth Muscle

Which muscle type is located throughout the body? (over 600 of this type of muscle in the body)

• Skeletal Muscle

• Smooth Muscle

• Cardiac Muscle

Which muscle type(s) appear striated (striped)?

• Skeletal Muscle

• Smooth Muscle

• Cardiac Muscle

Which muscle type(s) appear smooth (not striated or striped)?

• Skeletal Muscle

• Smooth Muscle

• Cardiac Muscle

Which muscle type has the function of movement of bones + other body structures?

• Skeletal Muscle

• Smooth Muscle

• Cardiac Muscle

Which muscle type is only found in the heart?

• Skeletal Muscle

• Smooth Muscle

• Cardiac Muscle

Which layer of the heart is cardiac muscle found in?

• epicardium

• myocardium

• endocardium