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प्रश्न
Write a short note on the human heart.
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उत्तर
The heart is a pump that circulates blood to all parts of the body. It is about the size of a human fist and located to the left in chest cavity. It has four chambers – two upper chambers called auricles or atria and two lower chambers called ventricles. The auricles receive blood from different body parts and ventricles pump the blood out of the heart. The valves between auricle and ventricle on each side allow blood to flow in one direction only. Heart acts as a double pump. The right side of the heart carries deoxygenated blood to the lungs to be oxygenated. The left side of the heart pump oxygenated blood to the body.
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संबंधित प्रश्न
Which side of the heart (left or right) contains oxygenated blood?
What does the term “double circulation” mean?
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Give reason for the following:
The arteries are deep seated in the body
Production of RBCs occurs in ______.
Why does the left ventricle possess a thicker wall than the right ventricle?
Fill in the blanks with suitable words given below:
The oxygen-rich blood is pumped into different parts of the body through ______.
Multiple choice questions. Tick ( ✓ ) the correct choice:
Human heart has
The process of keeping the blood flowing continuously throughout the body.
Identify the INCORRECT match
