556 



TEXT-BOOK OF EMBRYOLOGY. 



Corpus callosum 

 1 



Hippocampal fissure 



Olfactory stalk 



Lamina terminals | 

 Anterior commissure 

 Beginning anterior column of fornix 



I Hippocampal fissure 

 Chorioid fissure 



Fig. 481. — Graphic reconstruction of the mesial hemisphere wall of a human fcetus 

 (fourth month). His, from Quain's Anatomy. 

 and v, Anterior and posterior parts of preterminal area; It, lamina infrachorioidea; 1cm, limbus or 

 border of mesial hemisphere wall (gyrus dentatus and fimbria) between hippocampal and 

 chorioid fissures; P, "stalk" of hemisphere. 



fair 



Fig. 482 -Diagram of a transverse section through the fore-brain, of a human foetus (fourth 

 month) to_ show the relations of the margins of the mesial walls of the hemispheres His 

 from Quains Anatomy. * lk -°- -""> 



Cs., corpus striatum; fi., limbus medullaris (fimbria); fa., limbus corticalis (gyrus dentatus)- h f 

 hippocampal fissure; Th., thalamus 



