What is the structure and funtioning of different sections of human heart ? Explain
Answers
Explanation:
Structure of human heart:
{Refer to the attachment for diagram.}
Human heart is a closed fist sized organ, fully made up of muscles slightly tilted towards the left lung, located near the lower center of the chest.
Function of the heart:
A human heart mainly has the function to collect blood and push it with the force to the body parts through the arteries.
First, the oxidized blood from the lungs enter the Left Atrium through the pulmonary veins, and stays there until the Bicuspid valve opens for a little bit. After the Bicuspid valve opens, the blood enters the Left Ventricle and gets collected there until the pressure rises, once the pressure becomes enough for blood to force out of the Left Ventricle, the Aortic Valve opens and Left Ventricle contracts to force blood out of it. The Left Ventricle has thick walls to overcome the pressure exerted by the pressurized blood in it. When the Aortic Valve opens, the blood forces out of the Left Ventricle and enters the Aorta, which further divides into arteries that reach all parts of body.
When the arteries reaches the body parts, they carbonize the blood through the capillaries and use up the oxygen in the blood in order to produce energy. This carbonized blood is taken back to the heart by the veins, that has many valves to control the flow of blood to the heart.
The veins, combines together and form the Vena Cava, that flows the carbonized blood into the heart, and enters the Right Atrium, where the blood stays until the Tricuspid Valve opens for a little time, once it opens, it enters the Right Ventricle where it gets collected until the pressure becomes enough for the blood to force out of heart. Once the pressure becomes enough for the blood to force out of heart, the Right Ventricle contracts, forcing the blood to flow out of heart through pulmonary arteries.
The Pulmonary Arteries, transports the carbonized blood to the lungs, where the lungs oxidizes the blood by removing the carbon dioxide from the blood to the air and puts oxygen from air in it through Capillaries. This Oxidized blood is carried back to the Left Atrium of the heart by the Pulmonary Veins.
This cycle of blood circulation occurs continuously in order to ensure proper functioning of the other organs of the body.
This cycle becomes slow which sleeping or relaxing while becomes fast while heavy exercises.
{The whole answer except the diagram is typed and not copy-pasted, kindly show some mercy...}
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