What happens to the heart during the P wave?
I'll answer
Earn 20 gold coins for an accepted answer.20
Earn 20 gold coins for an accepted answer.
40more
40more
Scarlett Davis
Studied at the University of Zurich, Lives in Zurich, Switzerland.
During the P wave, the atria of the heart undergo through a process called depolarization. This is an electrical event that prepares the atria for contraction. The depolarization of the atria is initiated by the sinoatrial (SA) node, which is the heart's natural pacemaker located in the right atrium. The electrical impulse travels through the atria, causing the muscle cells to contract almost simultaneously. This contraction pushes blood from the atria into the ventricles. The P wave is the graphical representation of this atrial depolarization on an electrocardiogram (ECG).
After the P wave, the next significant wave on the ECG is the QRS complex, which represents the depolarization of the ventricles, preparing them for contraction and the subsequent pumping of blood to the lungs and the rest of the body.
Following the QRS complex, the T wave is observed, which signifies the repolarization of the ventricles. This is the electrical resetting of the ventricles in preparation for the next heartbeat.
Works at the World Health Organization, Lives in Geneva, Switzerland.
The first wave is the P wave, which represents the depolarization of the atria. This happens right before the atria contract and push blood into the ventricles. The next wave is called the QRS wave. ... The T wave comes next, and this represents the repolarization of the ventricles.
评论(0)
Helpful(2)
Helpful
Helpful(2)
Julian Hall
QuesHub.com delivers expert answers and knowledge to you.
The first wave is the P wave, which represents the depolarization of the atria. This happens right before the atria contract and push blood into the ventricles. The next wave is called the QRS wave. ... The T wave comes next, and this represents the repolarization of the ventricles.
