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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
Match the statements in Column A with those in Column B:
The table below is designed to indicate the transport of certain substance in our body. Fill in the
blanks with suitable answers.
| Substance | From | To |
| Lungs | Whole body | |
| Carbon dioxide | ||
| Urea | ||
| Digested carbohydrates |
Intestines | |
| Target organs |
What is meant by the term 'double circulation' of blood in mammals? What is diastole?
Fill in the blanks with suitable words given below:
The liquid part of coagulated blood is known as ______.
Fill in the blank:
______ carry pure blood.
Describe the functions of the: Heart
In what ways does the blood entering the kidney differ from that leaving the kidney?
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Complete the following sentence with appropriate word:
The chamber of heart which pumps blood into aorta is __________.
A female has haemophilic brother and parents having nonual blood clotting. She marries a male who has no history of haemophilia in his family. What is the possibility of her children having this disease?
