| arteria radicularis magna | Largest of the medullary arteries which supply the spinal cord by anastomosing with the anterior (longitudinal) spinal artery; it arises from a lower intercostal or upper lumbar artery (on the left side about 65% of the time) supplying most of the blood to the lower two-thirds of the anterior spinal artery. See: medullary arteries of brain. Synonym: artery of Adamkiewicz, great anastomotic artery, great radicular artery. (05 Mar 2000) |
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| vertebra magna | <anatomy> The triangular-shaped bone lying between the 5th lumbar vertebra and the coccyx (tailbone). It consists of 5 vertebrae fused together and it articulates on each side with the bones of the pelvis (ilium), forming the sacroiliac joints. (17 Dec 1997) |
| chorda magna | See: Tendon, Achilles (12 Dec 1998) |
| cisterna magna | The largest of the subarachnoid cisterns between the cerebellum and the medulla oblongata; may be divided into a dorsal cistern located between the cerebellum and dorsal surface of the medulla (cisterna magna) and a lateral cistern located between the cerebellum and the lateral aspect of the medulla. Synonym: cisterna cerebellomedullaris, cisterna magna. (05 Mar 2000) |
| therapia magna sterilisans | Ehrlich's concept that an infectious disease, especially one of protozoal origin, can be cured by one large dose of a suitable remedy, large enough to sterilise all the tissues and to destroy the microorganism contained therein. (05 Mar 2000) |
| Fascioloides magna | A species of fasciolid flukes found in the lungs and liver of deer and sometimes cattle in North America; it is not known to infect humans. (05 Mar 2000) |
| lacuna magna | A recess on the roof of the fossa navicularis of the penis, formed by a fold of mucous membrane, the valve of the navicular fossa. (05 Mar 2000) |
| valve of inferior vena cava | An endocardial fold extending from the anterior inferior margin of the inferior vena cava to the anterior part of the limbus fossa ovalis. Synonym: valvula venae cavae inferioris, caval valve, eustachian valve, sylvian valve. (05 Mar 2000) |
| vena | <anatomy> Any one of the great systemic veins connected directly with the heart. Vena contracta. The portal vein of the liver. A vein. Vena cava. Origin: L, literally, contracted vein, hollow vein. (11 Mar 1998) |
| vena advehens | Collective term for a series of branching channels in the early embryo receiving blood from the umbilical and/or vitelline venous systems and passing the mixed blood to the sinusoids of the liver; they become terminal branches of the hepatic portal vein. Synonym: vena afferentes hepatis. (05 Mar 2000) |
| vena afferentes hepatis | Collective term for a series of branching channels in the early embryo receiving blood from the umbilical and/or vitelline venous systems and passing the mixed blood to the sinusoids of the liver; they become terminal branches of the hepatic portal vein. Synonym: vena afferentes hepatis. (05 Mar 2000) |
| vena anastomotica inferior | <anatomy, vein> An inconstant vein that passes from the superficial middle cerebral vein posteriorly over the lateral aspect of the temporal lobe to enter the transverse sinus. Synonym: vena anastomotica inferior, Browning's vein, Labbe's vein. (05 Mar 2000) |
| vena anastomotica superior | <anatomy, vein> A large communicating vein between the superficial middle cerebral vein and the superior sagittal sinus; it passes upward from the lateral sulcus, often following the line of the central sulcus (Rolando's fissure). Synonym: vena anastomotica superior, Trolard's vein. (05 Mar 2000) |
| vena angularis | <anatomy, vein> A short vein at the medial angle of the eye, formed by the supraorbital and supratrochlear veins's and continuing as the facial vein. Synonym: vena angularis. (05 Mar 2000) |
| vena appendicularis | <anatomy, vein> The tributary of the ileocolic vein that accompanies the appendicular artery. Synonym: vena appendicularis. (05 Mar 2000) |