THE SPINAL CORD 



831 



or funiculi. The dorsal column occupies the area between the dorsal septum and 

 groove and the line of attachment of the dorsal nerve roots; this column in its 

 turn is generally subdivided into the funiciilus gracilis (column of Goll) and the 

 funiculus cuneatus (column of Burdach} by the shallow dorsopara median groove 

 and glia septum referred to above. The ventral column (funiculus anterior} 

 occupies the area between the ventral fissure and the outermost fascicles of the 

 ventral nerve roots an arbitrary boundary line. The lateral column (funiculus 

 laferalis) constitutes the remainder of the cord, between the posterior and anterior 

 nerve root attachments. Each of these columns is subdivided into its component 

 bundles or fasciculi, best studied in sections of the cord. 



LOCATION OF THE SEGMENTS FOR 



SENSIBILITY. MOTILITY. 



Sight I 



Bearing 



Pharynx 

 Lary, 

 JS&ophagu 



Thoracic and abdom 



Occipital region 

 Front of neck 

 Hack of 



Shoulder 



fMusmlo- 

 spiral n 

 Median n. 

 Ulnar n. 



Sphincter iridit 



CUiarii 



Rectus int.. levator palpebr. tup, 



Rectus inf. and sup. 



Obi. infer. 



-~ Obi. super. 



iseter, temporal, pterygoids 



- Rectus extern. 



Occipitofront., orbicularis oculi (upper faeiaV, 

 Muscles of expression (lower facial) 

 Palatal and pharyngeal muaclt* 

 Muscles of the larynx 

 Muscles of the tongue 



Sternomastoid 



Deep muscles of the neck 



Scaleni 



Trapezius, terratus onticu* 



Delt., biceps, pectoral, maj. (clavie. portion) 1 ^ 



Srachial. antic., supinator longiis V 3 



Triceps, latis.dorsi.pect. maj. (costal " ) J * 

 Sxtensores carpi et digitorum | 

 Flexores carpi et digitorum J For ^rm 

 Interossei, lumbricales > 



Thenar, hypothenar ) 



Development of the Spinal Cord. The elongated postcranial portion of the neural tube 

 Becomes the spinal cord, while the primitive cavity within is preserved as the central canal of 



