1. What is the primary role of heart valves in blood flow regulation?
2. What is the primary function of the atria in the heart?
3. What are the atria of the heart primarily responsible for?
Coronary arteries — supply?
Supply oxygen-rich blood to the heart muscle.
Atria — function?
Receive blood into the heart.
Heart chambers — roles?
Atria receive blood; ventricles pump blood.
Ventricles — function?
Pump blood out of the heart.
Valves — function?
Prevent backflow; ensure unidirectional blood flow.
Septum — role?
Divides heart into right and left sides.
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