VEIN 



1594 



VELLEITY 



sinus, beginning at the jugular fossa ; it accompanies the 

 internal and common carotid arteries, and joins the 

 subclavian vein to form the innominate. V., Jugular, 

 Posterior, External, a small vein in the dorsal 

 portion of the neck. V. of Labbe. See V., Pos- 

 terior Anastomosing. V., Lingual, the vein returning 

 the blood from the tongue. It empties into the inter- 

 nal jugular. Vs., Lumbar (four on either side), veins 

 corresponding to the lumbar arteries. Vs., Mammary, 

 Internal, veins formed by the union of the venae 

 comites of the superior epigastric and internal mam- 

 mary arteries ; they empty into the innominate vein. 

 V. of Marshall. See V, Oblique. V., Maxillary, 

 Anterior, a small vein of the anterior portion of the 

 face. V., Maxillary, Internal, a vein accompanying 

 the first part of the internal maxillary artery. V., 

 Median Basilic, the largest of the two divisions of 

 the median ; it unites with the superficial ulnar to 

 form the basilic. It is chosen for venesection. V., 

 Median Cephalic, the smaller branch of the median ; 

 it unites with the superficial radial to form the cephalic. 

 V., Median, Deep, a vein formed by the union of the 

 outer vena comes of the ulnar artery and the muscular 

 and radial recurrent veins. V., Median, Superfi- 

 cial, a vein that starts at the anterior plexus of the 

 wrist and unites with the deep median to form the 

 median. V., Mesenteric, Inferior, one formed by 

 the superior and middle hemorrhoidal veins at the 

 rectum ; it accompanies the inferior mesenteric artery, 

 and joins the splenic vein behind the pancreas. V., 

 Mesenteric, Superior, one that accompanies the 

 superior mesenteric artery, and joins the splenic vein to 

 form the portal. V., Oblique {of Marshall), a vein 

 crossing the dorsal portion of the left auricle of the 

 heart. It is the remnant of the left duct of Cuvier. 

 V., Obturator, a vein accompanying the artery of the 

 same name. V., Ophthalmic, a short trunk carrying 

 the blood from the eye ; it empties into the cavernous 

 sinus. Vs., Ovarian, two veins beginning as the 

 pampiniform plexus in the broad ligament ; the right 

 one empties into the inferior vena cava, the left one into 

 the left renal. V., Pancreatic, a vein returning the 

 blood from the pancreas. V., Peroneal, a vein ac- 

 companying the peroneal artery. Vs., Phrenic, veins 

 accompanying the phrenic arteries. V., Popliteal, one 

 formed by the union of the vence comites of the anterior 

 and posterior tibial arteries; it accompanies the popli- 

 teal artery, and becomes the femoral at the junction of 

 the lower with the middle third of the thigh. V., Por- 

 tal, a short trunk formed by the junction of the superior 

 mesenteric and splenic veins ; it enters the liver. V., 

 Posterior Anastomosing (of Labbe), one of the 

 cortical cerebral veins. V., Pudic, a vein accompanying 

 the pudic artery; it empties into the internal iliac. Vs., 

 Pulmonary, two veins on each side returning the 

 aerated blood from the lungs to the heart. V., Radial, 

 Superficial, a vein accompanying the musculo-cuta- 

 neous nerve up the radial side of the forearm. V., 

 Renal, a vein returning the blood from the kidneys. 

 V., Salvatella, a vein of the little finger, situated in 

 the fourth metacarpal space and entering into the for- 

 mation of the posterior ulnar vein. V., Saph- 

 enous, Long or Internal, a long vein running up 

 the inner aspect of the leg, terminating in the femoral 

 vein below Poupart's ligament. V., Saphenous, 

 Short or External, a vein running up the outer as- 

 pect of the foot, leg, and back of the calf; it empties 

 into the popliteal vein. Vs., Sciatic, veins ac- 

 companying the sciatic artery. V., Spermatic, 

 a vein returning the blood from the testicle ; on the 

 right side it terminates in the inferior vena cava and on 

 the left in the left renal vein. V., Splenic, a vein 



returning the blood from the spleen ; it forms the vena 

 porta by uniting with the superior mesenteric vein. 

 V. -stone. See Plilebolith. V., Subcerebral, a large 

 vein at the base of the brain. V., Subclavian, a 

 continuation of the axillary ; it unites with the inter- 

 nal jugular vein to form the innominate vein at the 

 sterno-clavicular articulation. Vs., Submaxillary, 

 veins returning the blood from the submaxillary gland. 

 Vs., Temporal, veins returning the blood from the 

 temporo-maxillary region of the head ; they join the 

 internal maxillary vein to form the temporo-maxillary 

 vein. V., Temporo-maxillary, one formed by the 

 union of the temporal and internal maxillary veins in 

 the parotid gland ; it terminates in the external jugu- 

 lar. Vs., Thyreoid, veins returning the blood from the 

 thyreoid gland. V. of Trolard, a vein of the cere- 

 brum passing along the posterior branch of the fissure 

 of Sylvius and emptying into the superior petrosal sinus. 

 V., Tympanic, a vein accompanying the tympanic 

 artery. V., Ulnar, Superficial, a vein running from 

 the wrist up the anterior and inner surface of the fore- 

 arm. V., Umbilical, in the fetus, a vein extending 

 from the navel along the falciform ligament to the liver. 

 Vs., Uterine, a plexus of veins returning the blood 

 from the uterus. V., von Burow's. See Bn 

 Veins. V. of Vesalius, a vein forming the channel 

 of communication between the pterygoid plexus of 

 veins and the cavernous sinus. V., Vidian, one of 

 the branches of the pharyngeal vein. 



Veinage {va'-naj) [vena, vein]. Veining. 



Veined {vdnd) [vena, vein]. Provided with veins. 



Veining (van'-ing). Same as Venation. 



Veinless {van'-les) [vena, vein]. Without veins. 



Veinlet [van' -let). See Venule. 



Veinous {va'-nus) [vena, vein]. Same as Venous. 



Veinule (vBn'-ui). See Venule. 



Veinulet [van' '-u-let) [vena, vein]. A branch of a 

 veinlet. 



Veiny (va'-ne). Same as Venose. 



Velamen [vela' -men) [L. : //., Velamina\ A veil, or 

 envelop. V. nativum, the skin. V. vulvae. 

 Apron. 



Velamentous {vel-am-en' -tus) [velamen, a veil]. Veil- 

 like. 



Velamentum {vel-am-en' -turn) [L. : pi., Velamentd]. 

 A veil, or covering membrane. Velamenta cere- 

 bri, meninges. V. infantis, the fetal membi 



Velar {ve'-lar) [velum, veil]. Pertaining to a velum, 

 especially to the velum palati. 



Velarium {vc-la' -re-um) [ve/icm, veil: pi., Velaria]. 

 In biology, the peculiar velum of the Cubomedus, 

 Rhizostonuc, differing from the true velum of the 

 pedota by its supply of gastro-canals. 



Velate {ve'-lat) [velare, cover, veil]. Furnished with 

 a veil. 



Velation {ve-la'-slum) [velare, to veil]. The formation 

 of a velum. 



Veliferous {ve-lif'-er-us) [velifer, sail-bearing]. Htv- 

 ing a velum ; velamentous. 



Veliform \vel' -if-orrn) [velum, veil; forma, form]. , 

 Forming a velum. 



Veliger {vel f -ij-er) [velum, a veil ; gerere, to bear]. In 

 biology, a larval stage of development in 

 characterized by the presence of a velum, or ciliated 

 swimming-membrane. 



Veligerous {ve-lij'-er-us) [velum, a sail, v< 

 to bear]. In biology, bearing a veil, or velum. 



Vella's Fistula. See Fistula. 



Vellarin {vel'-ar-in). The active principle of I 

 cotyle asiatica ; alterative, astringent, tonic. I » 



Velleity {vel-e' -it-e) [velleitas : ve'lle. to wish], A weak t 

 form of volition ; feeble desire or inclination. 



