5 o OUTLINES OF ANATOMY. 



Vertebral artery. 



Fourth, or intercranial portion, 541. (532) 

 Branches : 542-3. (533) 

 Posterior spinal artery. 

 Anterior spinal artery. 

 Posterior inferior cerebellar : 



Internal, or inferior vermiform branch. 

 External, or hemispherical branch. 

 The basilar artery, 543~4- (533~4) 



Branches: Transverse, or pontal arteries. 

 Internal auditory artery. 

 Anterior cerebellar. 

 Superior cerebellar. 



Internal, or superior vermiform branch. 

 External, or hemispherical branch. 

 Posterior cerebral arteries: 



Ganglionic, or central branches : 

 Postero-median branches. 

 Posterior choroid branch. 

 Postero-lateral branches. 

 Cortical, or hemispherical branches : 

 Uncinate. 

 Temporal. 

 Temporo-occipital. 

 The circle of Willis, 535-6. (526) 

 Formed : In front. 

 Laterally. 

 Behind. 

 Read : Summary of the distribution of the cerebral arteries, 544~S- (535) 



A. The central branches : 



The two median : 



Antero-median. 



Postero-median. 



The four lateral : 



Antero-lateral. 



Postero-lateral. 



B. The cortical branches : 



The anterior cerebral. 

 The middle cerebral. 

 The posterior cerebral. 

 The Cerebral Veins, 661-2. (648-9) 

 Cortical, or hemispherical. 

 Central, or ganglionic. 



Cortical, hemispherical, or superficial veins : 

 Superior cortical veins. 

 Inferior cortical veins. 



Central, ganglionic, or deep cerebral veins : 

 Vena magna Galeni : 



Tributaries of the veins of Galen : 

 Choroid vein. 

 Vena corporis striati : 



Tributaries. 

 Basilar vein : 

 Tributaries. 

 The Cerebellar Veins, 662-3. (649) 



Superior and inferior. 

 Superior. 

 Inferior. 



