Heart Node location and functions

purkinje fiber normal rate

20-40bpm

AV node normal rate

40- 60 bpm

SA node normal range

60-100 bpm

Purkinje fibers

Distribute electrical charge to cardiac muscle cells of ventricles, causing depolarization of cells, which results in both ventricles contracting together

AV node location

R atrium, R ventricle

SA node function

pace maker of the heart

purkinje fiber/av bundle location

AV bundle= IV Septum, purkinje fibers trace ventricles

AV node function

Acts as a gatekeeper and briefly delays impulses from the SA node, to allow the atria to contract completely and empty the blood into the ventricles.

SA node location

superior vena cava/R atrium