|search Mr. R.'s world of math and science free and accessible educational resources for all|
Bobby tried to booty shake,
Muscles are a type of tissue that can contract to cause movement.
There are three types of muscles in the human body:
Cardiac muscle is found only in the heart,
smooth muscles are found in organs like the stomach and bladder, and are moved involuntarily by the body.
Skeletal muscles are the muscles that enable conscious movement of the body.
There are more than 600 muscles in the human body, of those, the jaw can exert the most force, and the cardiac muscle does the most work- your heart must work continuously throughout your lifetime.