Meaning : Sinoatrial Node
Category : Health & Body
Sub Category :Cardiovascular system
Type : Initialism
What is the full form of S-A and meaning ?
This is known as the sinus node of the heart and its job is to send electrical signals to the heart in order to tell it how fast or slow it should pump blood.When this node gets affected and does not function properly,then an artificial pacemaker needs to be surgically implanted.