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 The four dense collagen valve rings, the central body of the heart

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jancancook



Masculin Nombre de messages : 237
Age : 33
Localisation : Viet Nam
Date d'inscription : 15/02/2011

MessageSujet: The four dense collagen valve rings, the central body of the heart   Lun 31 Oct - 8:58

The four dense collagen valve rings, the central body of the heart and the cardiac skeleton of the heart are histologically bound to the myocardium. Collagen contribution to heart performance summarily represents an essential, unique and moving solid anchor opposed to the fluid mechanics of blood within the heart. This structure is an impermeable firewall that excludes both blood and electrical influence (except through anatomical channels) from the upper to the lower chambers of the heart. As proof, one could posit that atrial fibrillation almost never deteriorates to ventricular fibrillation. Individual valvular leaflets are held in sail shape by collagen under variable pressure. Calcium deposition within collagen occurs as a natural consequence of aging. Calcium rich fixed points in an otherwise moving display of blood and muscle enable current cardiac imaging technology to arrive at ratios essentially stating blood in cardiac input and blood out cardiac output. Specified imaging such as calcium scoring illustrates the utility of this methodology, especially in an aging patient subject to pathology of the collagen underpinning.



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The four dense collagen valve rings, the central body of the heart
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