Which node is called the 'pacemaker' of the heart? — Zoology | Mockzy

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Which node is called the 'pacemaker' of the heart?

Atrioventricular (AV) node

Bundle of His

Purkinje fibres

Sinoatrial (SA) node

Cardiac output is defined as:

The process of formation of blood cells is called:

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The given figure shows the schematic plan of blood circulation in humans with labels A to D. identif

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