blood flow

Through which vessel and into which chamber does blood first enter the heart?

Blood enters through the superior vena cava into the right atrium.

Which valve regulates blood flow between the right atrium and the right ventricle?

The tricuspid valve.

What is the route of blood after it leaves the right ventricle?

It passes through the pulmonic valve into the pulmonary artery to travel to the lungs.

How does oxygenated blood return to the heart from the lungs?

It returns through the pulmonary vein and enters the left atrium.

What valve does blood pass through when moving from the left atrium to the left ventricle?

The bicuspid valve, which is also commonly referred to as the mitral valve.

In what way does blood exit the heart to reach the rest of the body?

Blood passes from the left ventricle through the aortic valve into the aorta.