Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and
OtherElectrical conduction system of the heart (Cardiac action potential) - Heart sounds Category:Thermodynamics This article is licensed under theGNU Free Documentation License. It uses material from theWikipedia article "Pressure_volume_diagram". Alist of authorsis available in Wikipedia....
Explore the order of blood flow through the heart as shown in the heart blood diagram. Learn how to trace the pathway of blood and tell when blood...
Ladderlike diagrams have existed since 1885, first applied to venous and arterial pulsation timing or waveform tracings and later in 1920 alongside electrocardiograms to explain the generation and propagation of electrical impulses in the heart. Two examples are presented in which the underlying ...
Pacemaker tissues of the Heart: Certain tissues in the heart, concerned with the initiation (generation of impulse) and propagation (conduction) of the heart beat, are called “Pace- Maker” tissue, such as: 1. Sino Atrial Node (S.A. Node): ...