Anastomosis Portocaval njengesisombululo iingxaki kunye lokufunyaniswa eziphilayo

umzimba wethu inkqubo ndacinga-kakuhle kakhulu ejikeleza. Kwimeko iingxaki kuyo nayiphi na zethala akananto ivulwa amasebe, nto leyo ibangelwa ubukho anastomoses. Ngaphezu koko, ezi collaterals ngamanye amaxesha achazwe iimpawu kwezonyango izifo ezithile.

imithambo lwemithambo yegazi lomntu bohlulwa babe ngamaqela ezinkulu ezintathu: inkqubo umthambo portal, imithambo yegazi ezisezantsi neziphezulu vuphukuphuku. Ngalinye kula maqela inika yayikukuphuphuma igazi kwiindawo ezithile zomzimba. Phakathi kwazo, kukho iqela iikhompawundi ezibizwa portocaval kunye kava anastomoses caval. Ngoko ke, xa elinye neendlela zenzekile, ezifana ukuvaleka imithambo, ngoko ngenxa yobukho zimbi lokuphuma lwemithambo igcinwa.

Ngoku thatha i sijonge anastomoses portocaval. Bona iikhompawundi ze Kwangale Portal (v iPorta.) Yaye lwemithambo aphantsi okanye ephezulu ezibuhlazarha (v cava obuphantsi et awongamileyo.) Yaye ukuba indawo elandelayo:

- emphinjeni asezantsi. Igazi evela vein Portal engena imithambo nesisu, ezo anastomose ngokubanzi esophageal. ngemithambo Esophageal, yena, ingena yegazi unpaired kunye hemiazygos ukuba eziya v. cava kunathi;

- ezinqeni. Yayikukuphuphuma igazi oluqhutywa imithombo ezintathu ukusuka phezulu, phakathi, zinzulu kuyo. Igazi avela kude inxalenye ephezulu kuli umthambo mesenteric, ephakathi - ukuya iliac lwangaphakathi ekugqibeleni ukusuka ezantsi - kumntu wesini lwangaphakathi (ekubhekiselelwa kulo iliac lwangaphakathi). Ngokwendalo, Ebubanzini isikali ukuba adityaniswe ukwenza anastomoses portocaval;

- cipande udonga esiswini (ejikeleza isangqa yosana). anastomosis Complex, imithombo leyo imithambo kuzo zonke iinkqubo ezintathu. Portal umthambo zezi ndlela yosana apho akhe inyanda isibindi setyhula. Ukususela kule Vena cava ophezulu kwi anastomosis eliphezulu yayiquka epigastrium, kodwa ngenxa Vena oluphantsi - epigastrium asezantsi Vienna;

- kidney philisi. Kulo mmandla, umchiza le mesenteric ndlela obuphantsi (ukusuka vein Portal) ngemithambo sezintso (ukusuka ezantsi kumgongxo).

Ndimele ndithi ukuba akukho nje anastomoses portocaval. Kwiindawo ezithile kunye engasentla nengasezantsi Vena cava. iikhompawundi ezifana kuthiwa kava anastomoses caval. Ezintathu zazo:

- cipande udonga esiswini. Ngaphandle anastomosis ne Kwangale portal, angaphantsi wancothuka usikrobana eliphezulu kakhulu kwaye enxulumene omnye komnye;

- plexus vertebral. Kule anastomoses umnqonqo iphuma aphezulu kummandla inkqubo umthambo, intloko nentamo ngaphezulu nomgongxo yaye inxalenye ephantsi - kunye imithambo empontshwa le Vena cava ophantsi. Ngoko ke, lo anastomosis ukhandwa le plexus vertebral;

- inkciyo. Empontshwa cava (enasilela Vena cava) kunye unpaired kunye hemiazygos cava (Vena ephezulu).

Meaning zimbi ephuma ayinakuphikiswa. Ngokomzekelo, xa syndrome of lwegazi Portal indima diagnostic anastomoses ebalulekileyo portocaval. Inyaniso kukuba phambi kwesi sifo, uninzi mpawu lwezonyango ezinxulumene nawo. Kukho owophayo ngenxa varices esophageal, kwakunye ukusuka isikali. Uphawu classic ke 'intloko jellyfish ". Oku kubonakala phezu kodonga akudala esiswini kwaye sandisiwe ndlela anastomosing. Konke oku kungenxa yokuba ngenxa yengcinezelo banda egazini Portal vein ayahamba zonke iindlela ezikhoyo kuyo. Izizathu lwegazi portal na isifo isibindi, ezifana kwesibindi, hepatitis, kunye nezinye izilonda neoplastic.

Ngaloo ndlela, ubukho anastomoses kukho ingongoma ebalulekileyo kakhulu ekusebenzeni umzimba. Badlala indima ebalulekileyo kwiinkqubo ezininzi izifo, kwaye kubaluleke kakhulu ukuba isigqibo wokuzimela umzimba iingxaki ezahlukeneyo, nangenxa lokufunyaniswa ezimbi ezithile.