Heart

Front

What type of muscle is the heart made of?

Back

Cardiac muscle.

Front

What happens when you stand up too quickly?

Back

You can become light-headed because your blood stays down at your legs and feet, and does not get to your head fast enough.

Front

Is the heart an involuntary muscle?

Back

True, the heart is an involuntary muscle that is always working.

Front

What is the main function of the heart?

Back

The heart pushes blood through your body.

Front

Can blood clots cause a heart attack?

Back

True, blood clots can cause a heart attack.

Front

What is the role of cardiac muscle?

Back

Cardiac muscle contracts to pump blood throughout the body.

Front

What does involuntary muscle mean?

Back

Involuntary muscles are muscles that work without you having to think about them.

Front

What is the importance of blood circulation?

Back

Blood circulation delivers oxygen and nutrients to cells and removes waste products.

Front

What can happen if the heart stops beating?

Back

If the heart stops beating, blood flow to the body ceases, which can be life-threatening.

Front

What is a heart attack?

Back

A heart attack occurs when blood flow to a part of the heart is blocked, often by a blood clot.