82 



PSYCHOBIOLOGY 



Frenulum 

 Valve of Vieussens 



Superior peduncle of 

 the cerebellum' 



Middle peduncle of 

 the cerebellum 



Striae acusticae 

 Area acustieae 

 Trigonum vagi 



Cuneate tubercle 

 Funiculus gracilis 



Taenia thalami 



Pineal body 



Superior quadri- 

 geminal body 



Inferior quadri- 

 geminal body 



Cms cerebri 



Pontine part of floor 

 of ventricle IV 



Eminentia teres 



Fovea superior 



Restiform body 

 •Trigonum hypoglossi 

 .Clava 



Rolaudic tubercle 

 Funiculus cuneatus 



Fig. 69A. Floor of fourth ventricle, and rear of medulla and mesencephalon of 

 full-time foetus. (Cunningham, Anatomy.) 



Optic tract 



rus cerebri 

 Corpus geniculatum 

 externum 



Pulvihar 



Corpus geniculatuai 



internum 



Superior bracMum 



Inferior brachium 



Inferior quadrigeminal body 



Lateral fillet 



luperior cerebellar peduncle 

 Taenia pontis 



Middle peduncle of 

 cerebellum 



tstiform body 

 Ligula bounding lateral 

 tcess of ventricle IV 

 Olivary emiuence 



Arcuate fibres (anterior superficial) 



Clava, 



Cuneate tubercle 



Rolandic tubercle 



Lateral district of medulla 



Anterior column of cord 



FlG. 69B. Brain stem of full-time foetus viewed from the left. (Cunningham, 

 Anatomy.) 



