Cardio

The central portion of the heart consists mainly of cardiac muscle tissue called

Lines the inner surface of the heart

This protects and anchors the heart

What are the valves in the heart

• atria

• ventricles

• semilunar

• atrioventricular

What separates the chambers of the heart

Collects blood from the body

Pumps blood to the lungs

Collects blood form the lungs

Pumps blood to the body

Valves prevent back flow

• true

• false