What is the muscle of the heart that continuously contracts and pumps blood?
cardiac muscle
Which of the following is an involuntary muscle?
cardiac muscle
What does contract mean?
tighten
What is the longest and most powerful tendon in your body?
The Achilles Tendon
You have more than ___________ muscles in your body.
650
Most of the muscles in your body are _______________ muscles.
skeletal
What are the muscles in your head, neck, and torso called?
axial muscles
What are the muscles in your arms and legs called?
appendicular muscles