5th - 6th grade
Your heart is an involuntary muscle that is always working.
The heart is made of which of the following types of muscles?
Your heart always pumps at the same rate.
Electricity cause your muscles to contract.
Which of the following are chambers of the heart?
Blood clots can cause a heart attack
Which of the following is true about your heart?
What can happen sometimes when you stand up to quickly?
The pulmonary artery is the artery that carries the blood to your heart from your lungs.
How are arteries and veins different?