Uyilo lomzimba womntu luhamba ubude obukhulu ukukhusela ingqondo. Oku kunengqiqo, njengoko nje ingqondo isonakalisiwe, akunakuze ikwazi ukuzilungisa ngokwayo, kodwa mhlawumbi mhlawumbi igosa lethu elibalulekileyo.
Isinyathelo esona siqwalasela umzimba uthatha ukukhusela ingqondo isifake kwikhona. Oku kukhusela ingqondo ngokulimala kabuhlungu. Nangona kunjalo, ingqondo ifuna izondlo kunye neoksijini, ezinikezwa ngegazi.
Kubalulekile ukuba kubekho indlela ekhuselekileyo yokukhusela ingqondo kwi-toxins kunye nezifo ezinokuthi zenziwe kwigazi. Ingqamlezo yengqondo-yengqondo yinqanaba leempawu ezikhethekileyo kunye neenkqubo zeseli ezenzelwe ukugcina izinto ezingathandekiyo ukusuka ekuphumeni kwegazi ukuya kwizicubu ezixabisekileyo zobuchopho.
Nangona i-barrier-brain brain barrier igcina izinto ezimbi kakhulu ziphuma kwinkqubo yesantya ephakathi, akunakwenzeka. Ezinye iamolekyu ziyakwazi ukudlula i-blood-brain-barrier, efana ne-glucose kunye ne-oksijini ebaluleke kakhulu ekusindeni kwengqondo. Ezinye iiseli ezifana ne-macrophages, ezibalulekileyo ekulwa nokusuleleka, ziyakwazi ukudlula kwi-barrier-brain brain.
Ukongezelela, kukho imimandla apho umqobo wengqondo-engqondweni engekhoyo. Imizekelo ibandakanya i-postrema yommandla, ummandla wengqondo efumana iibisi egazini kwaye ibonakalise impendulo ebangelwa yinzondo, kuquka ukuhlanza.
Omnye umzekelo i-pituitary gland, apho i-hormone ebalulekileyo ifihliwe ngokuthe ngqo ukusuka kwingqondo kuze kube ngumlambo wegazi.
Nangona zivulekileyo, umqobo weengqondo zengqondo zihlala zisebenza ngokugqithiseleyo ukugcina izinto zangaphandle okanye eziyingozi kwi-system central nervous system. Ininzi yexesha le nto yinto entle, kodwa ingabangela ingxaki xa kuphuhliswa iziyobisi ezintsha kwi-system ye-nervous.
Ngokomzekelo, enye yemingeni emikhulu ekuphatheni izicubu zeengqondo kukuba kunokuba kunzima ukwenza udibaniso olunokukwazi ukufumana umqobo we-blood-brain to reach the cancer.
Iindlela zokucoca ezidlulileyo kwiinkalo zeengqondo zibandakanya amayeza enziwe ngokucophelela okanye ukusebenzisa iindlela ezifana ne-ultrasound ukuya kwindawo evulekileyo isithintelo segazi nengqondo ngelixa unyango lunikwa (nangona oku kuhlolwa). Ubuqhetseba buya kubakho ukufumana kuphela oko unqwenela ngaphambili kwisigxina somkhuseleko wezobuchopho, kodwa ungaphazamisi injongo ebaluleke kakhulu ebhawulweni.