Question

Why is blood flow unidirectional in the human heart?

Answer 1

Blood flow is unidirectional in the heart because:

1. The heart is made up of four chambers: two atria (left and right) and two ventricles (left and right), which alternately contract and rest to pump blood.
2. The four chambers of the heart are joined by four valves: the tricuspid, pulmonic, mitral, and aortic valves.
3. These valves allow unidirectional blood flow while preventing blood backflow.
4. The heart is connected to two types of blood vessels: arteries and veins.
5. The heart is in charge of giving oxygen and nourishment to the body's tissues as well as removing waste.