Cardiovascular System Concepts

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

When blood leaves this chamber of the heart, it heads out to the body (not the lungs)

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

When this chamber contracts, it pushes blood through the tricuspid valve

This initiates the action potential that causes the heart to beat

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

This chamber of the heart receives oxygenated blood from the lungs

These are the smallest blood vessels with the thinnest walls in order to maximize diffusion of nutrients in and out of the interstitial fluid.

These carry blood towards the heart

These carry blood away from the heart