The conduction pathway through of the heart is viewed through images and outline. Starting with the pacemaker, into the AV node, along the bundle of His, and down to the apex of the ventricles. Through this pathway, both atria both ventricles will contract at the same time.
The effect of both the sympathetic and parasympathetic nervous system on the rate of heart beat is outlined and the reasons for the increase and decrease discussed.
Pressure receptors and chemical receptors in the Aorta and arteries are seen to adjust the heart rate based.