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प्रश्न
Give reason for the following:
The walls of the left ventricle are thicker than the walls of all other chambers.
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उत्तर
The left ventricle pumps blood to the farthest points in the body such as the feet, the toes and
the brain against the gravity. Thus, it requires greater force to push the blood. In order to
with stand with the force applied the walls of the left ventricle are thicker than the walls of
all the chambers.
संबंधित प्रश्न
Describe, in brief, the circulatory system in human beings.
Give reason for the following:
The blood groups of both the donor and recipient must be known before transfusing blood.
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
True or false:
Blood group A has antigen A.
Write a short note on the human heart.
Complete the following sentence with appropriate word:
The chamber of heart which pumps blood into aorta is __________.
_____ gas is transported to all parts of the body.
Why do we call saliva a digestive juice?
______ is an agranulocyte.
