Atrioventricular Block, First Degree in Cats
 
Normally, a heart contraction is caused by an electrical impulse originating from the sinoatrial node, stimulating the atria, traveling to the atrioventricular node and finally to the ventricles. This electrical conduction system is responsible for controlling the heart rate, and generating electrical impulses (waves), which propagate throughout the musculature of the heart, stimulating the heart's muscles to contract and push blood through the interior arteries and out into the body.

First-degree atrioventricular block is a condition ...read more