176 



TRANSVERSE SECTION OP THE HORSe's NECK 



dorsal 



panmaihis 

 jugular veiri 



N j I erne 

 thyreoid. 

 Mm sterno-hyoida 



Z-'?ntral 

 Fio. 229. — Transverse section of the neck at right angles to its long diameter. The 

 section passes through the third cervical vertebra, a, Portion of the head 

 of the fourth cervical vertebra ; b b, Vagus and sympathetic nerves ; c c, Re- 

 current nerves ; d d, Dorsal branches of spinal accessory nerve ; e e, Inter- 

 transversales colli muscles ; / /, Muscular twigs of the cervical nerves ; g g. 

 Tracheal lymph duct ; i, k, Transverse processes of cervical vertebra ; I, Inter- 

 vertebral disc of cartilage ; m m, Vertebral artery and vein ; «, Lymphatic 

 nerve twig ; o, Spinal cord ; p, Membranes of the cord ; q, Vessels of the cord, 

 r, Carotid artery. (After Ellenberger and Baum). 



