Question

SA node is found in
A) Lungs
B) Brain
C) Spleen
D) Heart

Answer 1

Hint:SA node stands for Sinoatrial node. As the name mentions it is found in the atrium of the heart. We will discuss the SA node in detail below.

Complete answer:
SA Node:
>The SA node is the major element in the cardiac conduction system.
>SA node or Sinus node Or sinoatrial node is a group of cells.
>The SA node is located in the walls(myocardium) of the right atrium of the heart.
>A node helps in the contraction of the heart by producing an electrical impulse.
>SA node is also known as the heart’s natural pacemaker.
>The electrical signal produced by the SA node moves from cell to cell down through the heart until it reaches the atrioventricular node ( AV Node).

So, from the above discussion it is clear that the SA node is found in Heart.
Hence, option D will be the right answer.
Note: Remember to keep in mind that SA Node helps in contraction of the heart by producing electrical signals which pass from cell to cells through heart.