DISSECTION OF THE HEAD AND NECK 



321 



(cd) Middle cerebral artery (A. cerebri media) (0. T. arteria 

 fossae Sylvii). (Vide Figs. 140-142.) 



Distinguish between basal and central branches and cortical 

 branches of the cerebral arteries. Why should emboli pass more 



Pare 



Gcp 



fo> 



Ch 



Frontal section through the right cerebral hemisphere (plane of the gyms centralis and chiasma 

 opticum). Origin and course of the A. lenticularis as well as of the cortical branches of the A. cer- 

 ebri media, schematically shown. 



Gca, anterior, Gcp, posterior central gyrus; Pare, lobulus paracentralis ; T]-T 4 , first to fourth tem- 

 poral gyrus; S, corpus callosum; Am, nucleus amygdalae ; J, island; 7-X tissura rcrrbri latrralis 

 [Sylvii] ; Li, nucleus lenticularis ; Thai, thalamus ; CH, gyrus hippocampi ; /, field of the A. cer. ant. ; 

 //, of the A. cer. med. ; III, of the A. cer. post. The dotted lines show the boundaries between these. 

 Ch, chiasma opticum ; Car, A. cer. inf. ; 1, stem of the A. cer. med. ; ta, course to the island is shown l>y 

 dotted outline ; 2, lenticulo-striate arteries ; 5, lenticulo-optic arteries ; , cortical branches of the A. cer. 

 med. ; a, medullary branches of the cortical twigs of the A. cer. med. (After v. Monakow, Gehirn- 

 path., Wien, 1897, p. 674, Fig. 155.) 



frequently into the middle cerebral than into the anterior cere- 

 bral artery! The " artery of cerebral hemorrhage " (Charcot), 



21 



