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प्रश्न
Short answer question.
Describe valves of human heart.
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उत्तर
Both the atria open into ventricles of their respective sides by atrioventricular apertures. The atrio-ventricular apertures are guarded by cuspid valves.
i. Cuspid valves:
These are bicuspid and tricuspid valves. The bicuspid valve also known as the mitral valve is present in the left atrio-ventricular aperture. Tricuspid valve is present in the right AV aperture.
ii. Eustachian valve:
It is present on the opening of the post-caval vein (inferior vena cava).
iii. Thebesian valve:
It guards the opening of the coronary sinus into the right atrium.
iv. Semilunar valves:
These three valves guard the opening between the right ventricle and pulmonary artery and left ventricle and aorta.
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संबंधित प्रश्न
What is hypertension?
| The human body has an organ A which acts as a double pump. The oxygenated blood coming from the lungs through blood vessel B enters the upper left chamber C of the double pump. When chamber C contracts, then blood goes into the lower left chamber D. The contraction of chamber D forces the blood to go into a blood vessel E which supplies oxygenated blood to all the organs of the body (except the lungs). The deoxygenated blood coming out of the body organs is taken by a blood vessel F to the right upper chamber G of the pumping organ. Contraction of chamber G forces the deoxygenated blood into the right lower chamber H. And finally, the contraction of chamber H sends the deoxygenated blood into the lungs through blood vessel I. |
- What is organ A?
- Name the blood vessel (i) B (ii) E (iii) F, and (iv) I.
- What are chambers (i) C, and (ii) D?
- What are chambers (i) G and (ii) H?
Name the main parts of the circulatory system.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The heart of a normal human adult beats more than one lakh times per day.
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State the function:
Tricuspid valve
Give the location of Pericardial fluid.
The QRS complex in a standard ECG represents ______.
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Which one of the following is a correct statement regarding human heart?
