The Heart. 



385 



A. anojiviiia 



~ A. subclavia sinistra 



A. carotis communis sinistra 



Arcus aortae 



V. cava superior 



* Aorta ascendens 



Atrium 

 dextrum 



V. cordis 

 anterior 



A. coronaria 

 [cordis] 

 dextra 



V. cordis 

 anterior 



Ventriculiis 

 dexter 



Hamus sinister a. pulmonalis 



A. pulmonalis 



"^ Ati'ium sinistrum 



-V. cordis magna 



Ramus descen- 

 dens anterior 

 a. coronariae 



[cordis] sinistrae 



Sulcus 



longitudinalis 



anterior 



Ventriculus 

 sinister 



431. The veins of the heart, viewed from above and in front. 



The yeius of the heart (continued) (see also Fig. 430). 



The V. poslei-ior ventriculi sinisti-i, on the left side of the heart, receives branches 

 fi"om the left ventricle and opens into the v. cordis magna or into the sinus coronarius. 



The i\ cordis mafjim ari,ses at the apex of the heart, runs at first in the sidcus longi- 

 tudinalis anterior toward the base, then in the sidcus coronarius around the left surface to 

 the sinus coronarius; -it collects its blood partly from the right, but chiefly from the left 

 ventricle. 



The vv. cordis anteriores, varying in ntmiber, upon the right ventricle, open at the 

 sulcus coronarius directly into the right atrium. 



The vv. cordis minimae open directly into the cavities of the right and left heart by 

 means of the foramina venarum minimarum [Thehesii] (see Fig. 420). 



