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प्रश्न
______ is known as pacemaker of heart.
Pacemaker of heart is _________.
पर्याय
SA node
AV node
His bundle
Purkinje fibers
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उत्तर १
SA node is known as pacemaker of heart.
उत्तर २
Pacemaker of heart is SA node.
संबंधित प्रश्न
What prevents the backflow of blood inside the heart during contraction?
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?
Define the term Circulatory system.
What is Sinus arrhythmias?
Choose the correct answer:
In mammals the opening of post caval in the right auricle is guarded by _________
Answer in only one sentence of the following question:
Mention the role of the pacemaker in human heart.
Why is the SA node called the pacemaker of the heart?
State the Function: Bicuspid valve
Give reason:
Valves are present in the veins.
If a person has a heart attack, what must be done immediately?
P. Loosen his/her clothing
Q. Make him/her lie down in an airy room
R. Rush him/her to the hospital
S. Engage him/her in a conversation
