Examlex
During heat stroke, sweat production on the face is maintained even during dehydration, to cool blood in the cerebral arteries.
SA Node
The sinoatrial node, a group of cells in the right atrium of the heart that acts as a natural pacemaker, initiating the heart's electrical impulses.
AV Node
The AV Node, or Atrioventricular Node, is a part of the heart's electrical system that acts as a gatekeeper, controlling the electrical impulses between the atria and ventricles.
Cardiac Conduction
The process by which the heart's electrical system transmits signals, leading to muscle contraction and heartbeats.
Cardiac Control Center
The area of the brain that regulates the rate and strength of heart contractions, primarily located in the medulla oblongata.
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