Internal Structure of the Heart

Front

______ carry blood to the heart.

Back

Veins

Front

The lower pumping chambers of the heart are called ____________.

Back

ventricles

Front

Which side of the heart carries poorly oxygenated blood?

Back

Right

Front

The upper and receiving chambers of the heart are called ____________.

Back

atria

Front

What valve(s) prevent(s) blood from flowing back into the ventricles?

Back

Semilunar Valves

Front

What is the function of the heart's atria?

Back

To receive blood from the body and lungs.

Front

What is the role of the ventricles in the heart?

Back

To pump blood out of the heart to the lungs and the rest of the body.

Front

What separates the left and right sides of the heart?

Back

The septum.

Front

What is the purpose of heart valves?

Back

To ensure unidirectional blood flow through the heart.

Front

What are the two main types of heart valves?

Back

Atrioventricular valves and semilunar valves.