Medical Definition of Skeleton of heart

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 Skeleton Of Heart

skeletogenous
skeletology
skeletomusculature
skeleton
skeleton appendiculare
skeleton axiale
skeleton crew
skeleton fork fern
skeleton hand
skeleton in the closet
skeleton in the cupboard
skeleton key
skeleton keys
skeleton of free inferior limb
skeleton of free superior limb
skeleton of heart (current term)
skeleton shrimp
skeleton staff
skeleton staffs
skeleton thoracicus
skeletoned
skeletoneer
skeletoneers
skeletonic
skeletoning
skeletonisation
skeletonisations
skeletonise
skeletonised
skeletonises

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