Yintoni i-Stroke enkulu?
Kuthetha ntoni xa umntu enesifo esikhulu ? Ngokuqhelekileyo okubhekiswa njengesiphango esikhulu senqanawa , ukuphazamiseka kwintsipho kwingingqi yengqondo ebizwa ngokuba yi -cortex ye-cerebral inokuchaphazela indawo enkulu kwaye ingaba nemiphumo emibi.
Ukuphazamiseka kukufa kweengcambu zengqondo ngenxa yokungabikho kwegazi. Iimpawu kunye neempawu zokubetha kuxhomekeke kwisitya segazi , kwaye ngoko ke inxalenye yengqondo yenzakele .
I-cortex ye-cerebral iyona nxalenye enkulu yengqondo, kwaye ihlukaniswe ngamacandelo abizwa ngokuthi lobes. Iimpawu ze-stroke ye-corroke zixhomekeke kwi-lobe ye-cortex ye-cerebral inokuphazamiseka kwegazi.
I-Frontal Lobe yiLobe enkulu kakhulu
I-stroke echaphazela isahlulo sangaphambili se-lobe yangaphambili ibangela iingxaki zokuziphatha, ukungabikho kokuvimba kunye neengxaki zememori ezibalulekileyo. I-Dementia nayiphi na uhlobo (i-Alzheimer's, i-Picks izifo, isifo sengqondo se-vascular dementia) ngokukhethekileyo isonakalisa iiseli zesisongelo kwi-lobe yangaphambili. Ukungabikho kwememori kwenza ubomi bunzima, kodwa ukuziphatha okungafanelekanga kumntu omdala kunomnye umngeni onzima kumbethe we-lobe yangaphambili. Ukuphazamiseka kule ndawo kubangelwa ukuphazamiseka kokuhamba kombhobho wesobunxele okanye ongakwesokudla kumbindi we-cerebral umzobo okanye umgca we-carotid wesigxina okanye sokunene.
Umqolo we-lobe wangaphambili ufumaneka kwindawo ephakathi kwengqondo, kufuphi nomphezulu wentloko.
Le ndawo ibizwa ngokuba yi-motor cortex okanye i-motor strip, kwaye ilawula ukuhamba kwamacala omzimba. Sine-lobe yangasese esisekhohlo kunye ne-right lobe yangaphambili kwaye isebenza ngokungafaniyo komnye nomnye. Ukubetha kwe-lobe yangaphambili kwesobunxele kubangela ubuthathaka bengalo nangomlenze, nangona uhlangothi lwe-lobe oluphambili lubangela ubuthathaka bengalo nangomlenze wesobunxele.
Ukuphazamiseka kokuphuma kwegazi kwicala lokushiya okanye lokunene le-carotid okanye i-artery ye-cerebral ephakathi kwesobunxele okanye yekunene ibangela ukuphazamiseka okuchaphazela umgca we-motor of the lobe.
Inxalenye engezantsi ye-lobe yangaphambili iqulethe indawo ekhethekileyo ebizwa ngokuba yi-Broca. Indawo yaseBraca ekhohlo yindawo yokuveliswa kweelwimi kubantu abanikezelekileyo kunye neendawo ezifanelekileyo ze-Broca yindawo yokuveliswa kweelwimi kubantu abanikezelwe ngamanxele. Xa umntu enesifo esichukumisa indawo ye-Broca, ukuveliswa kwentetho kuyingozi kakhulu, kodwa ukuqonda ukuthetha nokufunda kunokuhlala kuqhelekileyo.
I-Parietal Lobe
I-logeal lobe ilawula ukuvakalelwa kunye nokuqonda kwehlabathi. I-lobe ye-parietal ifumaneka emva kwe-lobe yangaphambili. Icala ngalinye le-parietal lobe lilawula ukujonga izinto ezinjengeqondo lokushisa kunye nokuthintela kwicala elincinane lomzimba. I-stroke echaphazela i-logeal lobe ibangela ukungabikho kwengqondo yomlenze nomlenze, ngelixa i-stroke echaphazela i-loari ye-parietal ye-lobe ibangela ukungabikho kovakalelo lwesandla nengalo. Ukongezelela, i-lobe ye-parietal lobe inika ingqiqo yokwazisa, ngoko ukuphazamiseka kwe-lobe ye-parietal lobe kunokubangela ukuba abantu bangayinaki icala elinye lomzimba, okanye elinye icala lendawo.
Le syndrome yenye yeyona mngeni kunzima kakhulu kubo bonke abasweleyo kunye nabamalungu entsapho. I-stroke ye-lobe ye-parietal ibangelwa ukucinywa kwegatsha le-artery central.
Lobe yesikhashana
I-lobe yesikhashana iphakathi kweetempile kwicala ngalinye, ngaphezu kweendlebe. Ulawulo lwexesha lolawulo lokuva kunye nokuqonda ulwimi. Abantu abanomdla wokuchaphazela i-lobe yexesha eliphambili (kwicala lasekhohlo kubantu abanikezelweyo kunye nelungelo elifanelekileyo kubantu abanikezelwe ngamanxele) ubunzima bokuqonda ulwimi kwaye banokuzama ukuthetha-kodwa banokuvelisa amagama agqityiweyo avakalelwa ngathi ezahlukeneyo ulwimi.
Kulula kakhulu ukufumana ukuhlaselwa kwendawo yoLwimi lukaBraca kunokudlwengulwa kwendawo yolwimi lwaseWernicke. I-stroke ye-lobe yesikhashana ibangelwa ukucinywa kwegatsha le-artery central.
Occipital Lobe
I-lopipital lobe ilawula ukujonga umbono. I-stroke echaphazela i-loip ye-occipital efanelekileyo ibangela ukuba ukulahleka kombono wecala lasekhohlo lazo zombini kunye nokubetha kwe-Lobe yama-occipital ekhohlo kubangela ukulahlekelwa kombono wecala lesibini. Oku kuya kwenzeka ukuba umzobo ongasemva kwesiberethri okanye umthambo we-vertebral uvaliwe.
Cerebral Cortex
Kuyinto engaqabile kakhulu ukuba unxephezelo oluchaphazela amacala omabini e-cortex ye-cerebral kuba imithwalo yegazi enika iingcambu ezisekunene nekhohlo zengqondo ziyahlukana entanyeni ngaphambi kokuba zingene ebuchosheni.
I-cortex ye-cerebral ibhekisela kwindawo ebanzi, enomxube kwindawo yangaphandle yengqondo. I-cortex ye-cerebral ngokuyinhloko iqulunqwe ngolu hlobo lweethambo ezibizwa ngokuba yimpunga, engenayo i-fat-insulation efana neyona nto ingumhlophe. I-neurons ye-cortex ye-cerebral ibonakala iluhlaza ngaphantsi kwe-microscope. Ngokwahlukileyo, indawo yechungechunge kunye nobuchopho bubuchopho bujonge kakhulu kwingqondo kwaye luqulethwe ngumbandela omhlophe obumhlophe.
Ivazi yegazi
Imithambo echotsheni isuka kwimibhobho emikhulu emithonjeni. Ukuhanjiswa kwemithambo ethile yegazi ngaphakathi kwengqondo kubonakala kwangaphambili. Xa umntu enesifo, izibonakaliso zeempawu kunye neempawu zengqondo zihambelana nendawo kwindawo yengqondo. Oku kwenza kube lula kwi- neurologist ukukhetha ukuba yeyiphi inxalenye yengqondo echaphazelekayo ngesifo-nangaphambi kokuba uphando lwe- brain imaging lubonakalise ukungabonakali. Ngokufanayo, ixesha elininzi lilula ukuqonda ukuba yeyiphi iinqwelo zegazi ezibangela ukubetha kwiimpawu kunye neempawu zesifo.
I-stroke ye-cortical ingabangelwa ngumkhuhlane wegazi omkhulu, obangela indawo ebanzi yomonakalo wengqondo. I-stroke ye-cortical ine-high-propensity yokuphuma kwegazi kunezibetho kwezinye imimandla yengqondo, kwaye ngoko ke isilonda esilungileyo esaqala ekuqaleni ngenxa yokungabikho kwegazi singaguqukela kwisifo esibi. Lo ngowomnye wemiphumo emibi kakhulu yeengxabano zokulwa. Abantu abafumana ukubetha kweekratshi bangaphinda bahlakulele ngokukhawuleza ngenxa yomonakalo wengqondo obangelwa yi-stoke.
Ngamanye amaxesha ukushaywa kweengqungquthela kubangelwa ukucinywa kwamasebe amancinci, kwaye ngoko banokuba bancinci okanye bathule . Xa amaninzi amanqabana amancinci ayenzeka ngexesha lexesha, angabangela ukugula komzimba .