Nodalvävnaden
Nodalvävnaden, also known as nodal tissue, refers to specialized cardiac muscle cells in the heart responsible for initiating and conducting electrical impulses. These impulses regulate the heart's rhythmic contractions, ensuring efficient blood circulation. The primary components of the nodal system are the sinoatrial (SA) node and the atrioventricular (AV) node.
The SA node, often called the heart's natural pacemaker, is located in the upper wall of the
Following atrial contraction, the impulse reaches the AV node, situated in the interatrial septum near the
From the AV node, the electrical signal travels through the bundle of His, which branches into the