Reviewing Muscles

Front

What are voluntary muscles?

Back

Voluntary muscles are muscles that you can control to move parts of your body, like your arms and legs.

Front

True or False: About half of the body's weight comes from muscles.

Back

True

Front

How many muscles are there in the human body?

Back

There are about 650 muscles in the human body.

Front

What makes bones move?

Back

Muscles make bones move.

Front

What are involuntary muscles?

Back

Involuntary muscles are muscles that work automatically, like the muscles in your heart and lungs.

Front

Can you name a type of voluntary muscle?

Back

Examples of voluntary muscles include leg muscles, arm muscles, and finger muscles.

Front

What is the main function of muscles?

Back

The main function of muscles is to enable movement by contracting and relaxing.

Front

What type of muscle is found in the heart?

Back

The heart contains involuntary muscles.

Front

What happens when a muscle contracts?

Back

When a muscle contracts, it shortens and pulls on the bones to create movement.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are controlled by you, while involuntary muscles work automatically without your control.