3.(Anatomy) Also called:cardiac pacemakera small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart 4.(Medicine) Also called:artificial pacemakeran electronic device for use in certain cases...
3.(Anatomy) Also called:cardiac pacemakera small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart 4.(Medicine) Also called:artificial pacemakeran electronic device for use in certain cases...
These pacemaker bursts occurred in the V2a interneuron prior to the onset of the swimming activity, suggesting that these pacemaker properties contribute to transforming descending commands into an excitatory rhythmic activity within the recurrent V2a interneuron circuit that initiates swimming. A ...
Surface membranes of neighboring HCN4+ cells within the dense part of the continuous HCN4 meshwork were so close to each other that it was often difficult to discern cells. HCN4 labeled both the cell body and peripheral branches of these cells resembling a neurite-like arborization. Confocal ...
Google Share on Facebook natural pacemaker Cardiac pacing That cell or a group of cells within the heart which initiates each contraction. Normally, the S-A node performs the function; but in arrhythmias, cells almost anywhere in the heart can assume the role of the dominant pacemaker ...
3.(Anatomy) Also called:cardiac pacemakera small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart 4.(Medicine) Also called:artificial pacemakeran electronic device for use in certain cases...
These rhythmic depolarization and repolarization cycles in pacemaker cells are responsible for initiating each heartbeat and maintaining its regularity [4]. These electrical signals rapidly travel through the atrial cardiomyocytes, thus initiating atrial contraction [7]. Subsequently, they navigate through ...