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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
Given below is a highly schematic diagram of the human blood circulatory system.
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- Which part (state the number) represents the heart? Give reason in support of your answer.
- Which numbers represent the following, respectively?
Aorta Superior vena cava Hepatic portal vein Renal Vein Pulmonary artery Stomach
Explain the structure and function of human blood.
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Fill in the blank:
The blood vessels which carry blood from the heart to different parts of the body are called ______.
Define the Circulatory system.
What is the Rh-factor?
Explain the Term
Hepatic Portal System
Which of the following correctly represents the components of blood?
Serum differs from blood in lacking ____________.
