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प्रश्न
Describe, in brief, the circulatory system in human beings.
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उत्तर
The circulatory system in human beings consists of heart, blood vessels (arteries, veins and capillaries) and blood. Blood circulates throughout the body in blood vessels by the pumping action of the heart. The impure blood is carried by veins from all parts of the body to the heart. The heart pumps it into the lungs where blood is oxygenated and carried back to the heart. From heart, the oxygenated (pure) blood is pumped to all parts of the body through arteries.
Thus, the circulatory system forms the transport system carrying food, oxygen, waste products, nutrients etc. throughout the body.
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संबंधित प्रश्न
Explain Diapedesis.
With which human organ system (or human systems) is the vena cava associated?
A blood vessel which has small lumen and thick wall is ______.
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Give any three differences between an artery and a vein
Fill in the blank:
In human body, heart is located on the _____ side of the chest cavity.
Fill in the blank:
______ carry pure blood.
______ prevent blood clotting.
A resting person usually has a pulse rate between 72 to 80 beats per minute.
Name the following:
The structure that holds the heart valves in position.
