760 THE NERVOUS SYSTEM 



the fifth and sixth thoracic vertebra) (attachment of the seventh and eighth 



L The C enkrgements occur with the development of the upper and lower limbs. 1 n 



FIG. 567. POSTERIOR AND ANTERIOR VIEWS OF THE SPINAL CORD. (Modified from Quain.) 



CLA r.4 

 FVNICULUS CUNEA TVS \ 



POSTERO-MED1AX SULCUS 



POSTERO-LA TERAL 

 SULCUS 



POSTERO-LA TERAL , 

 SULCUS 



POSTERO-MEDIAN SULCUS . 



CERVICAL 

 ENLARGEMENT 



FII.I'H 

 TERMINALS 



I.I'M r, Ml 

 ENLARGEMENT 



OLIVARY BODY 

 ' LATERAL l 

 \DECUSSATION OF PYRAMIDS 



. ANTERIOR MEDIAN FISSURE 



SECTION OF MEDULLA 

 OBLOXGA TA 



-ANTERO-LA TERAL SULCUS 

 (Line of central nerre-rools) 



\ ANTERIOR MEDIAN F1SSVRE 



COXI'fi 

 MEllflJ.ARIS 



the embryo they are not evident until the limbs are formed. In the orang-utan 

 and gorilla the cervical enlargement is greatly developed; the ostrich and emu have 

 practically none at all. 



Surface of the spinal cord. The cord is separated into nearly symmetrical 



