Musamman, a cikin jikin kowane mutum yana da wani nau'i mai nau'i wanda ake kira mai lalata. A cikin bayyanar, ƙananan tube ne, tsayinsa bai wuce 30 cm ba, kuma diamita - daga 4 zuwa 7 mm. A cikin wannan labarin za mu gaya maka dalilin da yasa ake buƙatar ureters, abin da tsarin su yake, da kuma abin da wannan jiki yake aiki.
Tsarin mai tsabta a cikin mata da maza
Ureters a cikin jikin mutane na jinsi biyu sun fito ne daga ƙananan ƙwayoyin. Bugu da ari, waɗannan shambura suna gangarawa bayan peritoneum kuma sun isa ganuwar mafitsara, ta hanyar abin da suke shiga a cikin jagora marar kyau.
Ganuwar kowane ureter yana da 3 layers:
- harsashi mai kwaskwarima, wanda ke kunshe da nama mai launi;
- Layer muscular;
- da ƙwayar mucous wanda ke rufe mai lalata daga ciki.
Kwanan adadin ureters yana da darajar zumunta kuma zai iya bambanta sosai a wurare daban-daban. Saboda haka, bisa ga al'ada kowane mutum yana da matsala masu yawa na wannan ɓangaren da aka haɗa ta a wurare masu zuwa:
- a wurin sauyawa na ƙwallon ƙwallon ƙwallon ƙuƙwalwa a cikin ureter;
- kafin mafita daga cikin ureter a cikin ƙananan ƙwararru;
- a wasu wurare a cikin ƙananan ƙwararru ko tare da dukan tsawonsa;
- Kafin ƙofar kowane ureter a cikin mafitsara.
Tsawon wannan kwayar a cikin mutane daban-daban na iya zama daban-daban, dangane da jinsi, shekarun da kowane mutum na mutum.
Ta haka ne, mace mai laushi ta kasance mai yawanci 20-25 mm ya fi guntu fiye da namiji. A cikin ƙananan kwaskwarima a cikin mata masu kyau wannan jaririn ya tilasta wa zanen jima'i na ciki, don haka yana da hanya daban-daban.
A farkon, mahaukaciyar mace sukan wuce tare da baki na ovaries, sa'an nan tare da tushen tushen ligament na mahaifa. Bugu da ari, waɗannan shambura tare da ƙwaƙwalwar ƙwaƙwalwa sun shiga cikin mafitsara a cikin kusanci na farji, yayin da aka haɗu masanin kwayar halitta ne.
Ayyukan ureter a jikin mutum
Babban aikin da ureters ke yi shi ne safarar fitsari daga ƙananan ƙwallon ƙwayar cutar. Kasancewa da Layer tsoka a cikin bango na wannan kwaya ya ba shi izinin canja canjinta gaba daya ƙarƙashin matsawar isar da take cikin cikin cikin ciki na tube, wanda sakamakon haka aka "tura shi" ciki. Bugu da ƙari, fitsari ba zai iya komawa baya ba, a matsayin ɓangare na ureter a cikin mafitsara a matsayin bawul da fuse.