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प्रश्न
How do you account for the following difference?
The left ventricle has thicker walls than the right ventricle.
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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 while the right ventricle pumps the blood only up to the lungs.
Therefore, the left ventricle has thicker walls than the right ventricle.
संबंधित प्रश्न
The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the questions which follow:
(i) Name the blood vessels labelled 1 and 2.
(ii) State the function of blood vessels labelled 5 and 8.
(iii) What is the importance of the blood vessel labelled 6?
(iv) Which blood vessel will contain a high amount of glucose and amino acids after a meal?
(v) Draw a diagram of the different blood cells as seen in a smear of human blood.
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 |
Differentiate between the following pair of terms: Vena Cava and Aorta
Fill in the blanks with suitable words given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through ______.
True or false:
People with blood group ‘O’ are called universal recipients
Describe the functions of the: Heart
______ prevent blood clotting.
Serum differs from blood in lacking ____________.
Assertion (A): RBCs help in the transport of respiratory gases.
Reason (R): The cytoplasm of RBCs contains the respiratory pigment Haemoglobin.
A resting person usually has a pulse rate between 72 to 80 beats per minute.
