366 



The Heart. 



A. anonyma 



V. cava superior 



Aorta ascendens 



-A. subclavia sinistra 

 - - A. carotis sinistra 



Arcus aortae 



Auricula dextra 



Conus 

 arteriosus" 



Atrium _ 

 dextrum 



Position of reflection of the 

 pericardium 



~" Ligamentum arteriosum 



A. pulmonalis 



Auricula sinistra 

 Atrium sinistrum 



Sulcus 



longitudinalis 



anterior 



Sulcus 

 coronarius ' 



Veutriculus 



sinister 



Ventriculus dexter 



Apex cordis 



Incisura [apicis] cordis 



411. I ne__nea.rt, moderately distended, viewed from above and in front. 



(Fades sternocostalis.) 



The heart is intercalatod as a pressure pump in the circulatory system and consists of 

 two fore -chambers, atrium dexlrum (0. T. rigth auricle) and atrium si/iistnan (0. T. left 

 auricle) and of two ventricles, veutriculus dexter (right ventricle) and ventriculus sinister 

 (left ventricle). It presents for examination an inferior, almost plane surface, lying upon the 

 dia]ihragm, the fades diaphraf/maiica (0. T. posterior surface) and a markedly curved surface 

 looking u]>ward and forward, the fades sternocostalis ((). T. anteric>r surface) ; the latter lies 

 partly just behind the sternum and behind the anterior ends of the 3i"<i to the %^^ pair of 

 ribs, in part it is overlapped by the margins of the lungs. 



