Brain of'aii Embryo. 



nr 



Fovea 

 rhomboid. 



"Med. ollong. 



Cerebrum, 

 Fossa Sylvii 



I. N. OLFACTOR. 



n. N. OPTIC. 

 Pedunc.cere 

 PonsVaroli 

 Cerebellum, 



Oliva 

 Med. oblong. 



458. Brain of an Embryo 459. Brain of an Embryo 

 of three months. of three months. 



View from above. View from below. 



C'erebrut) 



a 



Fossa Sylvii * 



Corp. 

 quad 



Cerebellum, 



Fovea 

 rhomboid. 



Cerebrum. 

 I. N. OLFACTOR. 



Fossa Sylvii 

 n. N. OPTIC. 

 Corp, mamm. 

 Pedunc. cerelr. 

 . N. OCULOMOT. 

 N. TRIGEM. 



Pans Varoli 

 Olivtt 



Cerebellum 

 Med. oblong. 



460, Brain of an Em- 461. Brain of an Em- 

 bryo of five months, bryo of five months. 



View from above. View from below. 



The hemispheres of the cere- 

 brum separated behind. 



All figures are in natural size. 



The spinal cord, Medulla spinalis, is the cylindrical elongated 

 part of the cerebro-spinal axis, which is contained in the vertebral canal ; 

 above, it is continued into the Medulla oblongata, below, it ends opposite the 

 I. or II. lumbar vertebra as Conus terminals, from which the Fllum terminale 

 is continued downwards to be attached with a sheath from the dura mater 



to the lower sacral vertebrae. 



16* 



