Portocaval anastomosis ka tharollo ea mathata a le phumano ya phelang

mele ea rōna e nang le hantle haholo nahannoeng tsamaiso ea ajoa. Tabeng ea mathata a ka efe kapa efe ya ajoa peeletso e lithuto tsa mafapha a, eo ho bakoa ke ho ba teng ha anastomoses. Ho feta moo, collaterals tsena ka linako tse ling ho hlalositswe matšoao a ea tleleniki ea itseng mafu.

Venous methapo ea mali ea batho e arotsoe ka lihlopha tse tharo tse ka sehloohong: tsamaiso ea mothapo-portal, ka tlaase le e ka holimo sekoti methapong. E mong le e ba lihlopha tsena e fana ka outflow mali ho tloha libakeng tse itseng tsa 'mele. Pakeng tsa bona, ho na le a 'maloa a metsoako eo ba bitsoa portocaval le kava caval anastomoses. Ka hona, haeba e 'ngoe ea tsamaiso ea e se e hlahile, tse kang blockage ea methapong, ka nako eo ka lebaka la ho ba teng ha detours venous outflow e bolokoa.

Joale hlahlobisiseng anastomoses portocaval. Ba metsoako ea mothapo-portal (v Le Porta.) 'Me ka tlaase kapa ka holimo sekoti venous (v Le cava tlaasana et-phahameng.)' Me ho ba le sebaka se latelang:

- the metso tlaase. Mali ho tswa ho mothapo-portal kena ka methapong mala, e leng ho pharaletseng anastomose le esophageal. methapong Esophageal, le eena, a phalla ka unpaired le hemiazygos methapong hore phallang ho v. cava phahametse;

- rectum. The outflow mali o etsoang ho tsoa e mehloli tse tharo ho tloha e ka holimo, bohareng le likarolong tse ka tlaase ea eona. mali phallang hōle le karolong e ka holimo ho e ka tlaase mesenteric mothapo, bohareng - ho iliac hare 'me qetellong tloha tlase - ka batho ba bong bo ka hare (o bitswang ka iliac hare). Ha ho pelaelo hore ka botenya ba ka rectum di amanang le theha anastomoses portocaval;

- anterior mpeng leboteng (pota lesale lelana). Rarahaneng anastomosis, mehloli ea eo ke methapong ea litsamaiso tsohle tse tharo. Portal mothapo ke lelana mothapo tse lokisetsa ka sosobaneng sebete chitja. From ba phahameng vena cava ka anastomosis ka holimo e ne e akarelletsa epigastrium, empa ka lebaka la vena tlaasana - tlaase epigastrium Vienna;

- a liphio komiki. Sebakeng sena, ho motsoako ba tlaasana mesenteric mothapo (ho tloha ka mothapo-portal) le methapong renal (ho tloha botebong ba sa sekoti).

Ke lokela ho bolela hore ho na le, e seng feela portocaval anastomoses. Libakeng tse itseng kena e ka holimo ka tlaase le e vena cava. metsoako joalo ba bitsoa kava caval anastomoses. Tse tharo tsa tsona:

- anterior mpeng leboteng. Ntle anastomosis le mothapo-portal, e ka tlaase le sekoti ka holimo ho pharaletseng 'me a amanang le mong ho e mong;

- vertebral akira theo gun. Ka holimo anastomoses mokokotlo mothapo le sebakeng ea tsamaiso ea mothapo, hlooho le molaleng sekoti holimo le e karolong e ka tlaase - le methapong lumbar ba tlaasana vena cava. Kahoo, anastomosis e thehoa ke akira theo gun vertebral;

- dele. Lumbar cava (tlaasana vena cava) le unpaired le hemiazygos cava (vena phahametse).

E bolelang detours ke keng ba latoloa outflow. Ka mohlala, ka lefu la kgatelelo ya madi-portal ke ea bohlokoa tekotshupo karolo ea portocaval anastomoses. 'Nete ke hore ho ba teng ha lefu lena, batho ba bangata ba liponahatso tsa tleleniki amanang le tsona. Ho na le e tsoa mali ho tswa ho varices esophageal, hammoho le ho tloha rectum ena. The letšoao khale ke "sesang hlooho". Ho bontša ka boeona e ka anterior leboteng ka mpeng 'me e atoloswa anastomosing mothapo. Ena eohle e ke e loketseng e le hantle hore ka lebaka la khatello e eketsehileng ea mali-portal mothapo phallang ka litsela tsohle tse fumanehang ho eona. Mabaka a kgatelelo ya madi-portal ke lefu sebete, tse kang ho thatafala ha sebete, lefu la sebete, le diso tse ling neoplastic.

Kahoo, ho ba teng ha anastomoses ke ntlha ea bohlokoa haholo ea ka tšebetso ea 'mele. Ba bapala karolo ea bohlokoa ka ho e hlophisitsweng, lefu tse ngata, 'me ke ea bohlokoa haholo bakeng sa ho u etsa qeto ea ikemetseng ke' mele oa mathata a fapa-fapaneng, 'me bakeng sa fumanoe tsa pathologies itseng.