Gwajiyoyinmu na Wuta Masu Kyau Giciye a cikin Kwayoyinmu
Halin da ake kira chiasm shine tsari na X wanda aka kafa ta hanyar gicciye jijiyoyi a cikin kwakwalwa. Nada jijiya yana haɗa kwakwalwa a ido.
Ga masu nazarin halittu, ana zaton tsinkayyar chiasm shine juyawa a juyin halitta. Ana tsammanin cewa hanyar hawan ƙetare da ƙananan nau'in ƙwayar da ke tafiya ta hanyar daɗaɗɗen ƙirar da aka samo asali ne don taimakawa wajen hangen nesa da kula da ido.
Anatomy na Binciken Tsammani
A ƙwallon ƙarancin ƙwayoyin cuta, ƙwayoyin haɗin jiki daga rabi na kowane giciye a kan ƙetare na kwakwalwa. Jigunan daga sauran rabi na din din suna tafiya zuwa gefe daya na kwakwalwa. Saboda wannan jigon, kowane rabi na kwakwalwa yana karbar sakonnin gani daga fagen gani na duka idanu.
Cutar cututtuka na ƙirar fata
Akwai damuwa da yawa fiye da yadda zasu iya rinjayar ainihin chiasm. Wadannan sun haɗa da:
- cututtukan ƙwayar ƙwayoyin cuta irin su sclerosis
- cututtuka irin su tarin fuka
- marasa lafiya (wadanda ba za su iya ba) da ciwon sukari da kuma cysts
- maganin ciwon sukari
- nakasa na jini (jini)
Ta yaya Pituitary Adenoma yana Shafar Farfesa
Cutar da ta fi dacewa da ke dauke da wariyar launin fata shine adenoma. Pituitary adenomas sune ciwon sukari. A mafi yawancin lokuta, basu da tasiri a kowane lokaci, amma a wasu lokuta, zasu iya rinjayar hangen nesa, wani lokacin kuma ya sa asarar hangen nesa. Yayin da suke girma, adenomas na pituitary zai iya sanya matsin lamba a kan muhimman abubuwa a jiki, irin su jijiyar ido.
Yin matsin lamba akan jijiyar jiki na iya haifar da makanta, don haka yana da mahimmanci ga likitocin ido don gane cutar ciwon sukari kafin su haifar da lalacewar hangen nesa.
Glandan gwal yana da girman girman wake kuma yana haɗe da tushe daga kwakwalwa a bayan yankin nas. shi yana zaune dama a karkashin ƙarancin kullun.
Yayinda ƙananan, ƙwayar magungunan yana sarrafa ɓarna da nau'i na nau'i daban-daban. Yana taimakawa ci gaba da bunkasawa kuma yana sarrafa glandiyoyi, gabobin jiki, da kuma hormones. Canje-canje a cikin kwayoyin hormones na iya haifar da canje-canje mai mahimmanci a jikin mu
Baya ga canzawar hangen nesa kamar hangen nesa biyu , fatar ido , da asarar gani na ido, adenomas na pituitary zai iya haifar da wadannan alamun bayyanar:
- Harsashin ciwon kai
- Nuna ko zubar
- Canji a jin wari
- Jima'i dysfunction
- Dama
- Canje-canje marar iyaka maras kyau
- Canja a cikin abubuwa ko farkon mazaune
Me yasa cututtuka na ƙwaƙwalwar ƙwayar ƙaƙa na iya zama da wuya a gano
Lokacin da cutar ko ciwon da ke ciwo da jijiyar ido kafin ya kai ga kyakwalwa a cikin kwakwalwa, lahani a cikin hangen nesa zai nuna a ido daya kawai kuma zai iya rinjayar duk filin wannan idanu. Mutane da ke shan wahala daga wani ɓangaren ɓangare daya a wasu lokuta basu lura da shi ba sai an rufe ido ɗaya. Wannan shi ne saboda, lokacin da dukansu suna buɗewa, ɗakunan filayen gani na kowace ido za su ɓoye lahani.
Idan cutar tana rinjayar fili a bayan kullun, mutumin zai sami lahani a cikin hangen nesa a duka idanu, amma lahani zai canza rabin rabi na gani.
> Sources:
> Kidd, D. Yarin da ake kira chiasm. Handba Clin Neurol. 2011; 102: 185-203.
> O'Connell JEA. Abinda ke da ƙwayar chiasma da heteronymous hemianopia. Journal of Neurology, Neurosurgery, da kuma Psychiatry . 1973; 36 (5): 710-723.
> Prasad, Sashank. Matsaloli masu kyau ta hanyar ciwon kwari. Brigham da asibitin mata. Yanar gizo. 2016.