1358 



HUMAN ANATOMY. 



downward course before passing distally to their ultimate splanchnic distribution. 

 The white fibres are either spinal splanchnic efferent or afferent fibres. 



The branches of distribution from the gangliated cord include the somatic 

 and the viscera/. The somatic branches are the gray rami communicantes ; the 

 visceral branches comprise the splanchnic efferents, which consist of both white 

 and gray efferent fibres, as well as the white splanchnic afferents. 



THE CERVICO-CEPHALIC PORTION OF THE GANGLIATED CORD. 



The cervico-cephalic portion of the gangliated cord (pars cephalica et cervlcalis 

 systematis sympathetici) consists of a series of ganglia, usually three, but often only 

 two, connected by composite association cords (Fig. 1131). It lies posterior to the 



Fig. 1 131. 



Lower head of external pterygoid muscle 

 Internal pterygoid muscle v 



Auriculo-temporal nerve 

 Internal carotid arterv 



Pneuinogastric nerve. 

 Inferior dental nerve 

 Spinal accessory nerv 



Part of facial nerve 



Hypoglossal nerve. 



Stylo-pharyngeus muscle 



Glosso-pharyngeal nerve 



1. cervical nerve 



Pneumogastric nerve. 



Superior cervical ganglion of 

 sympathetic 

 Superior laryngeal nervi 



Descendens hypoglossi 



II. cervical nerve 



III. cervical nerve 



IV. cervical nerv© 



Interganglionic assoclatioTT 

 cord of sympathetic 



Middle cervical gangli 



Lingual nerve 

 External laryngeal branch 



Superior cervical cardiac of 

 sympathetic 



Middle cervical cardiac of sympathetic 

 Pneumogastric nerve • 



Inferior cervical 



ganglion 



Phrenic nerve 



Branch to I . thoracic 



jfanglion 



Inferior cervical cardiac 

 of sympathetic 



■Recurrent laryng.al 

 nerve 

 Internal mammary artery 

 Cartilage 



Clavicular facet of sternum 



Middle cervical cardiac Oi 



Comn.on [pneumogastric 



carotid artery 

 Inferior cervical cardiac of 



pneumogastric 



Deep dissection of neck, showing cervical portion of sympathetic gangliated cord and its connections 



carotid sheath and anterior to the prevertebral fascia and the rectus capitis anticus 

 major and scalenus anticus muscles. Inferiorly it is continued into the thoracic 

 portion of the gangliated cord, and superiorly, at the base of the skull, it forms an 

 intricate plexus around the internal carotid artery, in whose company it enters the 



