cardiovascular system

What prevents blood from flowing back into the atria when the ventricles contract?

• semilunar valves

• sinoatrial node

• atrioventricular node

• tricuspid and bicuspid valves

When blood leaves this chamber of the heart, it heads to the lungs

• right atrium

• right ventricle

• left atrium

• left ventricle

This chamber of the heart receives oxygenated blood from the lungs

• right atrium

• right ventricle

• left atrium

• left ventricle

These carry blood towards the heart

• arteries

• veins

These carry blood away from the heart

• Arteries

• Veins

Blood traveling through the pulmonary circuit goes through the right side of the heart and out to the _______

• left side of the heart

• body

• lungs

• tricuspid valve

These are tiny blood vessels where the cells and the blood exchange nutrients, oxygen and waste.

• capillaries

• arteries

• veins

The heart is a large muscle that pumps the blood through the body. What type of muscle is it?

• skeletal muscle

• smooth muscle

• cardiac muscle

When a heart part of the heart dies and quits functioning....

• heart attack

• heart failure

When the heart can no longer pump enough blood for the body's needs...

• heart attack

• heart failre