INTRAVENOUS INJECTION. 



173 



panniciihis 



jugular veiri 



M slernc 

 t hyreoid. 

 Bm sterno-hyoidci 



l-^fntrnl 



Fig. 197. — Transverse section of the neck at right angles to its long diameter. The section 

 passes throuo-h the third cervical vertebra, a, Portion of the head of the fourth cervical 

 vertebra; 6 6, Vao-us and sympathetic nerves; cc, Recurrent nerves.; dd, Dorsal branches 

 of spinal accessory nerve ; e l\ Intertransversales colli muscles ; /, Muscular twigs of the 

 cervical nerves ; ^ g, Tracheal lymph duct ; /, h, Transverse processes of cervical vertebra ; 

 /, Intervertebral disc of cartilage; mm, Vertebral artery and vein ; n, Lymphatic nerve 

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

 artery. (After Ellenberger and Baum.j 



