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)
“... the yearly expenses of the existing religious system ... exceed in these United States twenty millions of dollars. Twenty millions! For teaching what? Things unseen and causes unknown!... Twenty millions would more than suffice to make us wise; and alas! do they not more than suffice to make us foolish?”
—Frances Wright (1795–1852)
“What we call spring here is one rose and two buds that just grew in the cloister garden. That is enough to move the men of my country. But their heart resembles that miserly rose. A more powerful breath would wilt them, they have the spring that they deserve.”
—Albert Camus (1913–1960)