Electrical Conduction System Of The Heart
The normal intrinsic electrical conduction of the heart allows electrical propagation to be transmitted from the Sinoatrial Node through both atria and forward to the Atrioventricular Node. Normal/baseline physiology allows further propagation from the AV node to the ventricle or Purkinje Fibers and respective bundle branches and subdivisions/fascicles. Both the SA and AV nodes stimulate the Myocardium. Time ordered stimulation of the myocardium allows efficient contraction of all four chambers of the heart, thereby allowing selective blood perfusion through both the lungs and systemic circulation.
Read more about Electrical Conduction System Of The Heart: Electrochemical Mechanism, Conduction Pathway, Summary of Waves
Famous quotes containing the words electrical, system and/or heart:
“Few speeches which have produced an electrical effect on an audience can bear the colourless photography of a printed record.”
—Archibald Philip Primrose, 5th Earl Rosebery (1847–1929)
“Our system is the height of absurdity, since we treat the culprit both as a child, so as to have the right to punish him, and as an adult, in order to deny him consolation.”
—Claude Lévi-Strauss (b. 1908)
“Alas,
For the tireless heart within the little
Lady with rod that made them rise
From their noon apple-dreams, and scuttle
Goose-fashion under the skies!”
—John Crowe Ransom (1888–1974)