478 



VEINS OF THE HEAD AND KECK. 



Fig. 30-1. 



Fig. 30i. — Diagrammatic View of the Sixuses of the Dura Mater and some of the 

 Deep Veins of the Neck and Head (modified from Cloquet and other sources). 

 (A. T.) i 



The greater part of the calvarium has been removed ; but an arclied strip has been 

 kept in the fore and upper part of the region of the superior longitudinal sinus. The 

 occiput has been entirely removed so as to expose the lateral sinus and its termination in 

 the jugular vein. «. the falx cerebri ; b, h', the tentorium cerebelli ; c, zygomatic arch ; d, 

 malar bone ; e, angle of the jaw ; /, spinous process of the axis vertebra ; 1, superior 

 longitudinal sinus ; 2, inferior longitudinal sinus ; 2, 3, straight sinus ; 2', internal vein.: 

 of the brain (veins of Galen) ; 3, lateral sinus, descending to 4, the commencement of 

 the internal jugular vein ; 3', superior petrosal sinus ; 4, 4, the internal jugidarvein ; 5, 5, 

 .superticial temporal vein, leading into the external jugular vein ; (J, middle temporal : 

 7, i>osterior auricular ; 8, internal maxillary ; 8', pterygoid plexus and communicationh 

 with the deep temporal veins ; 9, communicating branch between the facial, temporal, 

 and external jugular ; 9', pharyngeal branches ; 10, facial vein ; 10', submental 

 branch ; 10", continuation of the facial into the angular ; 11, an occasional branch from 

 the neclc ; 12, vertebral vein and artery ; 13, external spinal veins forming a plexus over 

 the vertebral arches ; 14, occipital sinus communicating above the atlas with the spinal 

 plexus. 



