Question

which wave show depolarisation of SA Node -

(1) p wave
(2) ARS wave
(3) T wave
(4) none​

Answer 1

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In the upper part of the right atrium of the heart is a specialized bundle of neurons known as the sinoatrial node (SA node).

The depolarization and repolarization of the SA node and the other elements of the heart's electical system produces a strong pattern of voltage change which can be measured with electrodes on the skin.

Voltage measurements on the skin of the chest are called an electrocardiogram or ECG.

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which wave show depolarisation of SA Node -

(1) p wave ✔✔✔

(2) ARS wave

(3) T wave

(4) none

THANKS❗❗❗

Answer 2

ANSWER

P wave show depolarisation of SA Node.

SA node is the pacemaker site.

During the P wave, the electrical impulses progress from the SA node through the intermodal artrial conduction tracts & most of the AV node.

Option (1)✓

Hope it helps ☺️