ANGIOLOGY 



235 



THE VEINS OF THE HEAD 



Branches of the Vena Facialis Interna 



The vena facialis interna (Fig. 62, No. 12) lies dorsal on the ptery- 

 goid bone and receives the vena maxillaris, the vena ophthalmica, the 

 vena mandibularis mterna, the venae pharjoigeae superiores, and the 

 vena retis mirabilis temporale. 



Wif^^ 



%t 



^^■^z '- f^' 



Fig. 72.— Blood-vessels and nerves of the abdominal cavity and hind extremity 

 and head, i, Vena renalis. 2, Vena intervertebrales sacrales. 3, Posterior 

 aorta. 4, External iliac. 6, Ischiadic nerve. 7, Ischiadic artery. 8, Arterial 

 rete (plexus temporalis). 9, Ophthalmic artery. 10, Palatine artery. 11, 

 Lingual artery. 12, Hyoid artery. 13, 14, External carotid artery. 15, Inter- 

 nal maxiUary artery. 16, Superior laryngeal artery. 17, Superior esophageal 

 artery. 18, Occipital artery. 19, Internal carotid artery. 



The vena maxillaris comes out of the upper beak with the re- 

 current trigeminus nerve and then passes backward between the 

 jugular and palatine bones. It lies medio-ventrally to the eye- 

 ball and communicates at this point with the ophthalmic vein. It 

 is covered ventrally with the pterygoid bone. The maxillary vein 

 collects the blood from the gland of Harder, the upper beak, and 



