Medical Definition of Cardiac fibrous skeleton

1. A complex framework of dense collagen forming four fibrous rings (annuli fibrosi), which surround the ostia of the valves, a right and left fibrous trigone, formed by connecting the rings, and the membranous portions of the interatrial and interventricular septa; it is found in association with the base of the ventricles, i.e., at the level of the coronary sulcus; its functions include: 1) contributing reinforcement of the valvular ostia while providing attachment for the leaflets and cusps of the valves; 2) providing origin and insertion for the myocardium; and 3) serving as a sort of electrical "insulator," separating the electrically conducted impulses of the atria and ventricles and providing passage for the common atrioventricular bundle of conductive tissue through the right fibrous trigone and membranous interventricular septum. Synonym: cardiac fibrous skeleton, cardiac skeleton, skeleton of heart. (05 Mar 2000)

Lexicographical Neighbors of Cardiac Fibrous Skeleton

cardiac catheterisation
cardiac cell
cardiac cirrhosis
cardiac competence
cardiac contractility
cardiac cycle
cardiac decompression
cardiac depressor reflex
cardiac diuretic
cardiac dropsy
cardiac dyspnea
cardiac dysrhythmia
cardiac enlargement
cardiac enzyme
cardiac failure
cardiac fibrous skeleton (current term)
cardiac ganglia
cardiac gating
cardiac gland
cardiac glands of oesophagus
cardiac glucoside
cardiac glycoside
cardiac glycosides
cardiac haemoptysis
cardiac heterotaxia
cardiac histiocyte
cardiac hormone
cardiac impression of liver
cardiac impression of lung
cardiac impulse

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