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प्रश्न
Observe figure and answer the given questions:
- Name the instrument.
- Label parts A, B and C.
अति संक्षिप्त उत्तर
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उत्तर
- Stethoscope
- A – Chest piece
B – Connecting tube
C – Ear pieces
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संबंधित प्रश्न
Initiation and stimulation of heartbeat take place by nerves.
The closure of the mitral and tricuspid valves at the start of the ventricular systole produces the first sound ‘LUBB’.
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Why is the Sinoatrial node called the pacemaker of the heart?
Differentiate between systole and diastole.
Doctors use the stethoscope to hear the sound of the heart. Why?
What is the pulse rate?
Match the parts of the heart in Column I with the direction of flow of blood in Column II.
| Column I | Column II | ||
| (i) | Right ventricle | (a) | Pushes blood into the pulmonary artery. |
| (ii) | Pulmonary veins | (b) | Take deoxygenated blood from the heart to the lungs. |
| (iii) | Left atrium | (c) | Receives blood from different parts of the body. |
| (iv) | Pulmonary arteries | (d) | Bring oxygenated blood from the lungs to the heart. |
| (v) | Left ventricle | (e) | Pushes blood into the aorta. |
| (vi) | Right auricle | (f) | Receives deoxygenated blood from the pulmonary veins. |
The 'Lub' and "Dub" heart sound are due to ______.
What is pulse?
