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प्रश्न
‘Heart of heart’ is called ______
विकल्प
SA node
AV node
Purkinje fibers
Bundle of His
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उत्तर
‘Heart of heart’ is called SA node.
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संबंधित प्रश्न
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?
Explain with the help of a suitable diagram conducting system of human heart.
Choose the correct answer:
In mammals the opening of post caval in the right auricle is guarded by _________
Draw the diagram external features of the heart.
State the Function: Coronary artery
____________ guards the left atrioventricular aperture in human heart.
Left atrium : pulmonary vein : right ventricle : ____________.
Assertion: Human heart does not allow the mixing of oxygen to reach blood with carbon dioxide to reach the blood.
Reason: Human heart has different chambers.
The heart forms an effective barrier against infection by microbes and pathogens.
Write the exact location of the following:
Heart
