Structure of human heart and its working for class 7
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Structure:
The human heart has four chambers: two upper chambers (the atria) and two lower ones (the ventricles), according to the National Institutes of Health. The right atrium and right ventricle together make up the "right heart," and the left atrium and left ventricle make up the "left heart."
Working:
The heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system.Blood provides the body with oxygen and nutrients, as well as assists in the removal of metabolic wastes.In humans, the heart is located between the lungs, in the middle compartment of the chest.
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Answer:
Heart is an important body organ placed in the chest cavity. It is almost of the size of our right and fist. It's lower tip is slightly tilted to the left. It is responsible for circulating nutrients in blood in body. It pumps the blood carrying oxygen and required nutrients in blood vessels to reach the different body parts. It receives blood carrying carbondioxide and metabolic waste from body cells
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