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प्रश्न
The closure of the mitral and tricuspid valves at the start of the ventricular systole produces the first sound ‘LUBB’.
पर्याय
True
False
MCQ
चूक किंवा बरोबर
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उत्तर
True
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संबंधित प्रश्न
The rhythmic expansion and contraction of the heart is called ______.
What is meant by ‘heart beat’?
The wave of expansion of an artery when blood is forced into it is called ______.
Initiation and stimulation of heartbeat take place by nerves.
What are heart sounds? How are they produced?
Why is the Sinoatrial node called the pacemaker of the heart?
Explain the conduction of heartbeat.
Doctors use the stethoscope to hear the sound of the heart. Why?
Observe figure and answer the given questions:
- Name the instrument.
- Label parts A, B and C.
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. |
