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प्रश्न
Why is the SA node called the pacemaker of the heart?
उत्तर
The SA node is called the pace-maker of the heart because the wave of contraction which conducts heart beat originates in it.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The blood loaded with carbon dioxide from the body comes into the __________ of the heart.
Name the following:
The valve of right auriculo-ventricular aperture.
Given alongside is a highly diagrammatic sketch of the internal structure of the human heart:
(i) Name the parts numbered 1-11.
(ii) What is the main difference in the quality of blood contained in parts 6 and 7?
Complete the following sentence with appropriate word:
The average heartbeat rate is ____ beats per minute in human being.
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.
______ is known as pacemaker of heart.
‘Heart of heart’ is called ______
By which of the following mitral valve and tricuspid valve are attached to the papillary muscles?
What is the role of Paplillary muscles?
The ______ have thin and less muscular ______ and have ______ to prevent back flow of ______.
