Cardiovascular System

These are the smallest blood vessels in the cardiovascular system

• veins

• capillaries

• arteries

• atrium

These prevent blood from flowing back into the atria when the ventricles contract

• semilunar valves

• capillaries

• tricuspid & bicuspid valves

• arteries

This blood vessel splits in two and sends oxygen-poor blood to the lungs

• pulmonary veins

• inferior vena cava

• pulmonary trunk

• superior vena cava

This area of the heart initiates the action potential that causes the heart beat

• SA node

• Right Atrium

• AV node

• Left Atrium

One of the largest blood vessels that transports blood from the body region below the diaphragm to the heart

• Pulmonary veins

• Superior Vena Cava

• Aorta

• Inferior Vena Cava

Chamber of the heart that receives oxygenated blood from the lungs

• right ventricle

• left atrium

• left ventricle

• right atrium

These carry blood away from the heart

• veins

• capillaries

• arteries

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

• right atrium

• left atrium

• right ventricle

• left ventricle

Stops blood from flowing back into the ventricles each time the contract

• tricuspid valve

• semilunar valve

• bicuspid valve

• none of these

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

• Left Ventricle

• Right Atrium

• Left Atrium

• Left Ventricle