14+ Cardiac Conduction Diagram. Sympathetic stimulation of cardiac β1/β2 receptors by the neurotransmitter norepinehrine and circulating adrenal epinephrine increase cardiac chronotropy, inotropy and dromotropy. The impulses generated here spread through the atria, initiating contraction.
File:Conductionsystemoftheheart.png – Wikimedia Commons from upload.wikimedia.org
This is controlled by the cardiac conducting system and regulated by the medulla via the. The autorhythmic cells serve as a pacemaker to initiate the cardiac cycle (pumping cycle of the heart) and provide a conduction system to coordinate the contraction of muscle cells throughout the heart. Cardiac muscle cells are not fused together but are instead connected via gap junctions at the coordinated contraction of cardiac muscle cells is controlled by specialised autorhythmic cells ('pace.
Recall that cardiac muscle shares a few characteristics with both skeletal muscle and smooth muscle, but it has some unique properties of its own.
14+ Cardiac Conduction Diagram. The autorhythmic cells serve as a pacemaker to initiate the cardiac cycle (pumping cycle of the heart) and provide a conduction system to coordinate the contraction of muscle cells throughout the heart. Implantable cardiac conduction devices (also known as cardiac implantable electronic devices or there are two major types of cardiac conduction devices: After completing this module, you should be able to: This group of muscle cells is called the cardiac conduction system.
