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प्रश्न
The diagram below depicts the human heart in one of its phases. Answer the questions that follow:
- Which part of the heart is in the contraction phase?
- Give a suitable reason to justify your answer in (a).
- Distinguish between Systole and Diastole.
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उत्तर
- Ventricle parts of the heart.
- These are the lower two chambers of the heart.
- Distinguish between Systole and diastole:
| S. No. | Systole | Diastole |
| 1. | Occurs when the heart contracts to pump blood out. | occurs when the heart relaxes after a contraction. |
| 2. | The normal range of systolic blood pressure should be 90 - 120mmHg. | The normal range of diastolic blood pressure should be 60 - 80 mm Hg. |
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संबंधित प्रश्न
Sketch and label the ventral view of the human heart.
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
How many valves are closed in this phase?
When are the sounds ‘LUBB’ and ‘DUB’ produced during heartbeat ?
Why are the walls of the left ventricle thicker than the other chambers of the heart?
How do the pulmonary artery and pulmonary vein differ in their function when compared to a normal artery and vein?
By which of the following mitral valve and tricuspid valve are attached to the papillary muscles?
______ guards the opening of inferior vena cava.
Heart is covered with double-walled membrane called ______.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Lub : Atrioventricular valves :: Dup : ______
Define the following term:
Heart
