( Vena maxillaris ( Vena ophthalmica ( Vena facialis ( Vena mandibularis interna ( interna ( Vena retis mirabilis temporalis ( Vena cephalica ( ( Venæ pharyngeæ superiores ( anterior or ( ( facialis ( ( Vena facialis cutinea ( communis ( ( Vena temporalis ( ( Vena facialis ( Vena auricularis Vena jugularis ( ( externa ( Vena palpebralis or cephalica ( ( Vena transversus communis ( ( Vena retis mirabilis temporalis ( Vena subclavia ( Venæ vertebrales ( ( Sinus cranii et cerebri ( ( Vena carotis ( ( ( ( Vena auris ( Sinus foveæ cerebelli ( ( ( Vena occipitalis externa ( Vena cephalica ( Vena jugularis prima ( posterior ( Vena occipitalis ( Vena lingualis ( Vena mandibularis externa Vena maxillaris ( Vena sublingualis externa ( Vena supra-palatina Vena ophthalmica ( Vena ophthalmo-temporalis, recurrent Vena facialis communis ( Vena cephalica externa Vena occipitalis externa ( Vena occipitalis interna Vena retis mirabilis temporalis ( Vena spheno-temporalis Sinus foveæ cerebelli ( Sinus occipitalis externa The trunk of the internal facial vein receives the blood of the =internal mandibular vein=. The internal mandibular vein emerges from the alveolar canal of the inferior jaw bone and receives branches from the muscles of mastication. The =vena retis mirabilis temporalis= passes out of the eye cavity and lies between the internal facial vein and the external facial vein, and passes around the os quadratum and the os pterygoideum. It receives veins from the outer ear region, lacrimal gland, eyelids, and the spheno-temporalis. The =venæ pharyngeæ superiores= are the veins on the dorsal surface of the pharynx. These veins form the small plexuses which unite with the two trunks of the facial veins. This forms an anastomosis between the left and the right facial veins. BRANCHES OF THE EXTERNAL FACIAL VEIN The vena facialis externa (Fig. 62, No. _B_, 9) lies behind the quadrate bone and is partly covered ventrally by the inner extension of the lower jaw bone. It collects the blood principally from the upper region of the cranium and the face, including the comb.