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प्रश्न
Explain the following:
Why is the SA node called the pace-maker of the heart?
उत्तर
The SA is also called the pacemaker because it establishes the basic frequency at which the heart beats. It starts each heart beat and sets the pace for the whole heart.
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संबंधित प्रश्न
Name the following:
The valve of right auriculo-ventricular aperture.
Select the odd one in the following:
Tricuspid, Bicuspid, Semilunar, Foramen ovales.
Choose the correct answer:
In mammals the opening of post caval in the right auricle is guarded by _________
Differentiate between:
Diastole and Systole.
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
The phase of contraction of heart is termed as ______.
Heart is made up of ______.
Heart is covered with double-walled membrane called ______.
Give the exact location of the pericardium.
The doubled-layered membrane which covers and protects the heart is ______.
