Examlex
The defenestration of Prague occurred in 1617 when ______________.
Heart Rate
The number of heartbeats per unit of time, typically expressed as beats per minute (BPM).
Sinoatrial Node
A group of cells in the heart that generates electrical impulses, acting as the heart's natural pacemaker.
Atrioventricular Node
A part of the heart's electrical system that delays the signal before passing it from the atria to the ventricles, allowing the heart’s chambers time to fill with blood.
Oxygen In Blood
The vital process by which oxygen is transported by red blood cells from the lungs to the rest of the body, supporting cellular respiration.
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