| prostatic urethra | The prostatic part of the male urethra, about 2.5 cm in length, that traverses the prostate; it includes the seminal colliculus, and the ejaculatory and prostatic ducts open into it. Synonym: pars prostatica urethrae. (05 Mar 2000) |
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| prostatic utricle | A minute pouch in the prostate opening on the summit of the seminal colliculus, the analogue of the uterus and vagina in the female, being the remains of the fused caudal ends of the paramesonephric ducts. Synonym: utriculus prostaticus, masculine uterus, Morgagni's sinus, sinus pocularis, uterus masculinus, vagina masculina, vesica prostatica, Weber's organ. (05 Mar 2000) |
| Young prostatic tractor | A short, straight tubular instrument with blades at its tip, which can be rotated open and closed; it is passed into the prostatic urethra, through a prostatotomy incision made during the later stages of open perineal prostatectomy, with its tip into the bladder; direct traction on the instrument brings the prostate gland down into the operative field where enucleation can be more easily performed. (05 Mar 2000) |
| venous | <anatomy> Of or pertaining to the veins. Origin: L. Venosus (18 Nov 1997) |
| venous angioma | <radiology> Caput medusae, wedge-shaped appearance with its base at the meninges and its apex directed toward the ventricles, prominent medullary vein drains into a markedly enlarged transcortical cerebral vein, angiogram: normal arterial phase without AV shunting (12 Dec 1998) |
| venous angle | The junction of the internal jugular and subclavian veins, toward which converge the external and the anterior jugular and the vertebral veins, the thoracic duct in the left angle and the right lymphatic duct in the right angle. Synonym: Pirogoff's angle. In neuroradiology, the angle of union of the superior thalamostriate vein (vena terminalis) with the internal cerebral vein, usually closely behind the interventricular foramen of Monro. (05 Mar 2000) |
| venous artery | Origin, right ventricle of heart; distribution, it divides into the right pulmonary artery and the left pulmonary artery, which enter the corresponding lungs and branch along with the segmental bronchi. Synonym: truncus pulmonalis, arteria pulmonalis, pulmonary artery, venous artery. (05 Mar 2000) |
| venous blood | Blood which has passed through the capillaries of various tissues, except the lungs, and is found in the veins, the right chambers of the heart, and the pulmonary arteries; it is usually dark red as a result of a lower content of oxygen. (05 Mar 2000) |
| venous capillary | A capillary opening into a venule. (05 Mar 2000) |
| venous circle of mammary gland | areolar venous plexus |
| venous congestion | <physiology> Overfilling and distention of the veins with blood as a result of mechanical obstruction or right ventricular failure. (05 Mar 2000) |
| venous cutdown | <procedure> Creation of a small incised opening in a vein to permit the passage of a needle or cannula for withdrawal of blood, administration of medication, or in diagnostic or therapeutic catheterization. (12 Dec 1998) |
| venous embolism | Embolism of a vein by an embolus carried in a direction opposite to that of the normal blood current, after being diverted into a smaller vein. Synonym: venous embolism. (05 Mar 2000) |
| venous foramen | <anatomy> A minute inconstant foramen in the greater wing of the sphenoid bone, anterior and medial to the foramen ovale, transmitting a small emissary vein from the cavernous sinus. Synonym: emissary sphenoidal foramen, venous foramen, Vesalius' foramen. (05 Mar 2000) |
| venous gangrene | Moist gangrene due to obstruction in the return circulation. Synonym: venous gangrene. (05 Mar 2000) |