what are the parts of heart explain them briefly
Answers
The right and left sides of the heart are divided by a wall called the septum. The right side pumps blood to the lungs, where the blood picks up oxygen. The left side pumps blood to the rest of the body.
The heart is made up of four hollow chambers:
The upper two chambers are the right atrium and left atrium. These are called "collecting chambers" because they collect the blood as it returns to the heart.
The lower two chambers are the right ventricle and left ventricle. These are called "pumping chambers" because they pump the blood out of the heart to where it needs to go.
Blood flows from chamber to chamber through valves, which are like little doors. They are as follows:
The tricuspid valve lets blood flow from the right atrium to the right ventricle.
The pulmonary valve lets blood flow from the right ventricle to the pulmonary artery.
The mitral valve lets blood flow from the left atrium to the left ventricle.
The aortic valve lets blood flow from the left ventricle to the aorta.
The valves keep the blood flowing forward and prevent it from leaking backward.
Muscular walls, called septa or septum, divide the heart into two sides.
On the right side of the heart, the right atrium and ventricle work to pump oxygen-poor blood to the lungs.
On the left side, the left atrium and ventricle combine to pump oxygenated blood to the body.
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