Umzobo ophakathi we-cerebral artery uletha i-oxygen kunye nezondlo kwiindawo zobuchopho
Umbhobho we-cerebral (owaziwa ngokuba yi-MCA) ngowona mkhumbi wegazi ohambisa i-oksijeni kunye nezondlo kwi- frontal, parietal kunye ne-temporal lobes , phakathi kwezinye iindawo ezibalulekileyo zobuchopho.
Ngesiseko sobuchopho, imiraro ye-carotid kunye ne-vertebrobasilar yakha isangqa soxube lweengxoxo ezibizwa ngokuba yi-Circle ye-Willis. Kule ngqungquthela, eminye imirhoxo - umthambo we-cerebral (ACA) wangaphakathi, umzobo we-cerebral, i-posterior cerebral artery (PCA) - vuka uhambe kuyo yonke indawo yengqondo.
Umbhobho ophakathi we-cerebral artery ungomnye wemivumba emikhulu eyaziwayo. Ukuphazamiseka komonakalo kwengqondo kubonakala ngenxa yokuphazamiseka kwegazi kwiindawo ezithile zobuchopho. Oku kwenzeka ngenxa yokukhutshwa kwesitya segazi okanye ukuphuma kweesitya segazi kwingqondo. I-stroke ibhalwa ngokubhekiselele kwintsimi ekhuseleyo yengqondo okanye ngesitya segazi esivinjiweyo.
Izibetho ezichaphazela umzobo ophakathi ophakathi komzimba ungabangela ubuthathaka ( hemiplegia ) kunye ne-numbness ebusweni, kunye / okanye ingalo kunye / okanye umlenze ecaleni lomzimba ophambene nesifo.
Izakhiwo ezinikezelwa yi-MCA ziquka indawo ye-Broca, indawo yokuthetha ngokucacileyo; Indawo yaseWernicke, indawo yokuthetha eyamkelekileyo; i-cortex yemoto, elawula ukuhamba kwentloko efanelekileyo, intamo,
trunk nengalo; kunye ne-cortex yechungechunge, elawula uvakalelo ukusuka entloko, entanyeni, enteni, nangengalo.
Ngenxa yokuba isifo sobungozi phakathi kwe-cerebral isradio enkulu, ukubuyiswa kwexesha elide kunye nokuvuselelwa kungathabatha inyanga okanye neminyaka.
Nangona kunjalo, izibetho ezinzima zingabangela ukuphucula kakuhle .
Ukubuyiselwa okuvela kwi-Middle Cerebral Artery Stroke
Umntu ngamnye obhekene nesifo sokuguqulwa kwesibhedlele esiphakathi ne-cerebral isifo esithile sokuphucula kunye neemfuno zokunyamekelwa kwexesha elide. Abanye abantu baya kuqhubeka bephucula iiveki, inyanga okanye iminyaka emva kokuphazamiseka ngokuhamba, ukucinga nokuthetha.
Emva kokuphazamiseka, abanye abantu baya kuba neengxaki zokufumana igama okanye abakwazi ukuthetha ngaphezu kwegama elinye okanye ibinzana ngexesha. Okanye, abanako ukuthetha konke, okubizwa ngokuba yi- aphasia . Kungathatha iminyaka emibili ukufumana ngokupheleleyo intetho kwaye kungekhona wonke umntu oza kuwufumana ngokupheleleyo.
Iingxelo:
I-Internet Stroke Centre. Iigazi zeGazi zeBongo. http://www.strokecenter.org/professionals/brain-anatomy/blood-vessels-of-the-brain/
Radiopaedia.org. I-Artery Cerebral Artery. http://radiopaedia.org/articles/middle-cerebral-artery
KwiYunivesithi yaseBritish Columbia. I-Artery Cerebral Artery. http://www.neuroanatomy.ca/stroke_model/mca_info.html
ILayibrari yeSizwe ka-US yamayeza. Medline Plus. "Ukubuyisela emva kweStroke." https://www.nlm.nih.gov/medlineplus/ency/article/007419.htm