Mafitsara mafitsara na daya daga cikin muhimman gabobin tsarin fitar da fitsari a jikin dan adam. Yayin da kodan ke da alhakin samar da fitsari, mafitsara ita ce ke da alhakin adanawa da fitar da ita ta ƙarshe. Mafitsara yana cikin ƙananan ɓangaren ciki, a cikin yanki - godiya ga wannan ƙayyadaddun ɓoyewa, zai iya kare kansa daga raunin da ke kewaye da ƙasusuwan pelvic. Idan mafitsara ba ta da komai, sai ta ɗauki siffar mazurari tana faɗaɗa sama da ƙunci a ƙasa, yayin da idan ta cika sai ta zama siffa mai siffar zobe. Ƙarfin mafitsara an ƙayyade shi ne ta hanyar jiki, amma gaba ɗaya ƙarfinsa yana tsakanin 0,4 da 0,6 lita.
Mafitsara na fitsari - jikin mutum
Tsarin mafitsara yana nuna innervation da yawa masu yadudduka masu kariya, kariya daga raunuka, misali daga ƙasusuwan ƙashin ƙugu. An gina shi da santsin tsokoki, nama mai haɗawa da tasoshin jini, a cikin siffarsa muna bambanta saman, shaft, kasa da wuyansa. Ganuwar mafitsara ya ƙunshi nau'i uku - na farko mai kariya Layer, na waje, abin da ake kira serous membrane, Layer located a tsakiya - tsakanin sassa na waje da na ciki - watau tsakiyar Layer (nama na tsoka) da kuma ciki Layer. , watau serous membrane. muhimmin kashi tsarin mafitsara shine jigon sa wanda yake halitta tsoka mai lalata ba da damar sauye-sauye na kyauta na siffar gabobin a duk kwatance. A can kasan mafitsara akwai urethra, wanda a karshe ke fitar da fitsari daga jikin dan adam. Ga maza, halin da ake ciki ya fi rikitarwa a wannan yanayin, saboda ciwon mafitsara yana ɗauka cewa nada ya ratsa ta tsakiyar prostate gland shine yake, wanda ake kira prostate. Wannan shi ne tushen matsalolin da yawa a wannan yanki dangane da fitsari. Sau da yawa ana samun haɓakar gland kuma hakan ya haifar da shi matsa lamba akan nada. Wannan yawanci yana haifar da raguwar ƙarfin rafi, kuma a lokuta mafi tsanani, rashin iya yin fitsari gaba ɗaya. Wani muhimmin abu mai mahimmanci na tsarin mafitsara na fitsari shine sphincter na urethra, saboda godiya ga shi yana yiwuwa a sarrafa fitar da fitsari. Ita ce tsoka da ke kula da tashin hankali akai-akai, godiya ga abin da aka rufe bude urethra yayin ajiyar fitsari. Matsayinsa yana da amfani musamman a cikin yanayi inda aka sami karuwa kwatsam a cikin yankin ciki - har ma a lokacin dariya, tari, atishawa. Sphincter yana iya hana fitowar fitsari maras so ta hanyar matsewar yanayi.
Mafitsara na fitsari - kar a tafi ba tare da shi ba
Jikin dan adam yana aiki ne ta yadda a dabi'ance ya tara fitsari sannan ya fitar da shi. Ita ce gabobin da ke taimakawa wajen cika wadannan ayyuka mafitsara. Yana ba ku damar adana ruwa mai tacewa, kuma godiya sphincter kiyaye shi a karkashin iko. A ƙarshe, aiki ne mafitsara yana sa fitar fitsari. Cibiyoyin da ke kula da waɗannan ayyukan suna cikin tsarin jin tsoro - a cikin kwakwalwar kwakwalwa, kashin baya, a cikin ganglia na gefe. Anan ne alamun ke shigowa cika mafitsara. Iyawa mafitsara domin ba iyaka. Idan ruwan ya cika shi a cikin 1/3, to, sigina suna gudana daga masu karɓa na bangon mafitsara kai tsaye zuwa kwakwalwar kwakwalwa, wanda ke nuna alamar buƙatar bayan gida. Idan mutum ya ki amsa kuma bai yi fitsari ba, waɗannan sigina suna samun ƙarfi, suna haifar da jin zafi, wani lokacin har ma da sha'awa mai raɗaɗi. A lokaci guda kuma, ana kunna aikin a wannan lokacin urethra sphincterswanda ke hana fitar da fitsari mara so. Idan bayan gida ya yiwu a ƙarshe, cibiyoyin jijiyoyi sun daina aika sigina mai ban tsoro, sphincter rame da fitsari ana fitar da su. Bayan an gama motsin hanji, gabobin sun sake yin kwangila, suna shirya tarin fitsari na gaba a cikin mafitsara.