What is a sinus node?

Sinus node, sometimes called SA node, is a group of cells that initiate electrical impulses and control heart rate. It is a central part of the heart line system. This complex arrangement of muscle cells, also known as a sinoatrial node or a sinuotrial node, serves as a congenital cardiac for the heart. The cluster consists of muscle cells known as modified cardiac myocytes that trigger and lead electrical impulses through the heart chamber. Nerves are built from both the spinal cord system and from the vagus system. It is a function of AV node to slow down the impulse until the chambers are ready to accept it. Once the chambers are sufficiently infected and are ready for the pulse, AV node allows you to pass through the pulse and moves along the fibrous walls through the heart and into the chambers.

If the Sinus node is disrupted, its duties can be fulfilled by AV node. If AV node was unable to function properly, heart fibersKnown as burkinjova fibers can take over the duties of impulse-production. These internal processes ensure that the heart beats at normal speed and rhythm and keeps blood flowing to the rest of the body.

A series of actions stimulated by a node SA makes it a natural cardiac for the heart. The node itself is regulated by the automatic nervous system, which also controls blood pressure, digestion, breathing speed, sweating and many other automated functions. When the automatic nervous system sends the Communications of the Sinus node emerges into action and begins to generate impulses. If the heart needs to beat faster, the automatic nervous system will alert the sinus node and the heart can double the speed of beating within seconds.

node can initiate defective impulses that lead to a state known as SICK sinus syndrome or dysfunction of nodes of sinus nodes. These non -functional signals cause abnormal heart rhythm. Implementation of artificial cardiac is popular treatment and helps to regulate electrical impulses prodSaid node.