The Heart Nodes

Question 1

SA Node

Answer 1

Generates electrical signal that cause the atria to contract

Pacemaker of the heart

Question 2

AV Node

Answer 2

Transmits impulses from the atria to the ventricles (slightly delays ventricle contraction)

Passes signal to the bundle of his

Question 3

Bundle of his function

Answer 3

Transmits impulse down the heart septum to the left and right branches in the ventricles (Purkinjee fibres)

Question 4

Purkinjee fibres function

Answer 4

Carry the electrical impulse to the ventricles to perform contraction.