• vas rectum

vas rectum (suomeksi)

Määritelmät:

• (lb, en, anatomy, usually plural) One of a number of straight ''(l, en, vas, vasa)'' (tubes), (non-gloss definition, specifically:)
• (lb, en, somewhat, dated) A straight (l, en, seminiferous) tubule conveying (l, en, semen) from its pertaining ''(l, en, tubulus seminiferus contortus)'' (convoluted seminiferous tubule) to the ''(l, en, rete testis)'' of the (l, en, testicle) that contains it; (non-gloss definition, now more commonly called) the (m, en, tubulus seminiferus rectus) (straight seminiferous tubule). (defdate, 1750–)
• * '''1750''', w:Albrecht von Haller, Albert Haller, “Of the paſſages of the ''ſemen''” in ''w:Philosophical Transactions of the Royal Society, The Philoſophical Tranſactions (1743–1750) Abridged'' X (1756), ed. w:John Martyn (botanist), John Martyn, [http://books.google.co.uk/books?id=SFEVAAAAQAAJ&pg=PA1092&dq=%22vasa+recta%22&hl=en&sa=X&ei=n3llT_aXB5GU8gP08dTlBw&ved=0CD0Q6AEwAQv=onepage&q=%22vasa%20recta%22&f=false page 1,092]
• *: A yellowiſh ''ſemen'' is generated in the ''vaſcula ſerpentina'', is ſent down into the '''''vasa recta''''', and thence depoſited in the ''rete'' under the ''albuginea''.
• * '''1843''', w:Thomas Blizard Curling, Thomas Blizard Curling, “A Practical Treatise on the Diseases of the Testis” in ''The Edinburgh Medical and Surgical Journal'' LX:ii, [http://books.google.co.uk/books?id=H9QEAAAAQAAJ&pg=PA216&dq=%22vas+rectum%22+%22vasa+recta%22&hl=en&sa=X&ei=cH9lT5HxBtGp8QPh0fiXCA&ved=0CEYQ6AEwAwv=onepage&q=%22vas%20rectum%22%20%22vasa%20recta%22&f=false page 216]
• *: One single, straight duct termed '''''vas rectum''''', which joins the ''rete testis'' at a right angle. The '''''vasa recta''''' are very slender, and easily give way when injected.
• * (seemorecites, lang=en)
• (lb, en, sometimes, ,, more fully, “(l, en, vas rectum renis)”) Any one of many straight (l, en, capillary, capillaries) in the (l, en, kidney) that branch off from the ''(l, en, arteriola efferens, arteriolae efferentes)'' (efferent arterioles) of (l, en, juxtamedullary) (l, en, nephron, nephrons), enter the (l, en, medulla), and surround the (l, en, loop of Henle), where they function to absorb (l, en, water) and to (l, en, secrete) salt and (l, en, urea) into the renal (l, en, interstitium), thereby facilitating the production of concentrated (l, en, urine). (defdate, 1858–)
• * '''1858''', w:Lionel Smith Beale, Lionel Smith Beale, ''Illustrations of the Constituents of Urine, Urinary Deposits, and Calculi'', Fig. 1. ''g.'', [http://books.google.co.uk/books?id=Ch0DAAAAQAAJ&pg=RA1-PA54-IA5&dq=%22vas+rectum%22+OR+%22vasa+recta%22&hl=en&sa=X&ei=cixmT5K3NYrB0QXVmbCyCA&ved=0CFkQ6AEwBjgUv=onepage&q=%22vas%20rectum%22%20OR%20%22vasa%20recta%22&f=false page 3]
• *: Long and almost straight vessels ('''''vasa recta'''''), into which the efferent vessel of those tufts situated at the bases of the pyramids, divides.
• * '''2000''', Christopher J. Lote, ''Principles of Renal Physiology'', fourth edition, § 6.4, [http://books.google.co.uk/books?id=8CfPjylrcUUC&pg=PA78&dq=%22vasa+recta%22&hl=en&sa=X&ei=inJlT5fYOIP08QO00eS5CA&redir_esc=yv=onepage&q=%22vasa%20recta%22&f=false page 78]
• *: The '''vasa recta''' are capillaries, mostly derived from the efferent arterioles of juxtamedullary nephrons, which have a ‘hairpin’ arrangement and dip far down into the renal medulla.
• Any one of numerous straight (l, en, artery, arteries) that branch off from the (l, en, arcade, arcades) of the (l, en, mesentery) of the (l, en, jejunum) and (l, en, ileum) whence they head toward the (l, en, small intestine). (defdate, most recent sense)
• * '''1990''', Jay H. Stein, ''Internal Medicine'', third edition, [http://books.google.co.uk/books?id=vpZLAQAAIAAJ&q=%22vas+rectum%22&dq=%22vas+rectum%22&hl=en&sa=X&ei=tXJlT5fTBsfy8QPm2ICkCA&ved=0CD0Q6AEwAQ page 395]
• *: Bleeding from colonic diverticula is caused by rupture of the underlying '''vas rectum'''.