Kumiswa reticular. Ubudlelwano nge motor ukusabela

Brainstem reticular Ukwakheka kumiswa plexiform, sebuningini izakhiwo kwemizwa, elise izingxenye ezimaphakathi (thalami, ubuchopho obuphakathi futhi medulla). Izinzwa ezenza kube up, ayahluka ngobukhulu, ubude neurite, isakhiwo. Kugujwa aluka zabo obukhulu.

Imisebenzi ye kumiswa reticular

Ukwakhiwa lihlobene cerebellum, umgogodla, cortex ku ama- cerebral, le sezinzwa (ukuhlinzeka ukusabela ezibaluleke kakhulu emzimbeni) uhlelo. Ngo ukwakheka anezikhala uxhumana sinyuka (afferent) zenyuka (efferent) pulses. I pulses kungaba ujikeleze futhi ivalwe izifunda kwemizwa. Kulokhu, ukuyaluza njalo inikezwe reticular kumiswa izinzwa ezinye ezingeni. Imiphumela iba yinhlanganisela yokukhandleka ukuzinikela ezithile imisebenzi yeminyango ezihlukahlukene isimiso sezinzwa esiyinhloko. Ukulungisa degree of excitation we kumiswa anezikhala wenziwa amagxolo ama-.

kumiswa reticular yakhiwa izifunda uyakwazi ukuhlinzeka noma enza kube lula bonyana umphumela inhibitory ku umgogodla motor ukusabela.

Ngokokuqala ngqá ubudlelwano phakathi ikhaliphe umgogodla nqgo nezindawo ezithile kumiswa anezikhala kwatholakala I. M. Sechenovym. Ngemva kwalokho, i-American sezinzwa Megounom ngosizo izisebenzi ngokucacile kuboniswa okwashiwo Sechenov.

Ngakho, lapho ukushukuma kagesi emkhakheni medial e izinkawu izinzwa namakati kukhona ukumisa okuphelele ukunyakaza, njengoba reflex, futhi kubangela ukushukuma motor esishintshashintshayo we- cortex cerebral. Ngakho bonke ukubopha lomkhuba wokuthi kuphakamisa kumiswa reticular, usebhekene ngokucasuka kukhona zamazwe amabili ngokwemvelo.

Lapho eyizwa lateral reticular kumiswa indawo at azungeze, linalo inhibitory umphumela esifundeni Kutholwe lula nomthelela umgogodla motor umsebenzi.

Ukwakheka reticular uyakwazi ukusebenza ezahlukene imfundo umgogodla.

Kufanele kuqashelwe ukuthi indawo kumiswa anezikhala, ukuba umphumela lula ku motor umsebenzi ubabonisa anteriorly. Ngakho-ke, ihlanganisa hhayi kuphela endaweni ye oblongata medulla, kodwa le ephakathi futhi Pons.

imfundo Net kungathinta imisipha ithoni. Lokhu evulekile isikhundla R. egwadle. sezinzwa Swedish wabonisa ukuthi ukwakheka reticular kuthinta umsebenzi gamma Izinzwa. ukudlula axons yabo ngokusebenzisa okuthiwa "intrafuzarnym" imisipha zemicu ukuzivocavoca indima ebalulekile ukulawulwa isigaba we ukunyakaza komzimba ngaphansi kwezimo ezihlukahlukene.

ezindaweni ezahlukene ukwakheka reticular bangaba nethonya emnandi ubunjalo generalized we- cortex cerebral, uhlanganyela nazo zonke endaweni yayo.

Ukulondoloza anezikhala kumiswa umsebenzi nokuzwela yamakhemikhali ahlukahlukene afundwa kakhulu igazi Kwenziwa izici humoral (carbon dioxide, catecholamines, njll ..). Lokhu, sekusilethela ukuhlanganiswa kumiswa reticular e ukulawulwa kwemisebenzi ethile autonomic.

Kufanele kuqashelwe ukuthi cwaningo ngobuhlobo kumiswa anezikhala nezinye izakhiwo subcortical, izakhiwo zalo kwasiza kwacacisa imiklamo yemvelo neurophysiological ithi ngabanye (ubuhlungu, angavaleki, ubuthongo, kudingeka ukuqapha, uthi ngokomzwelo futhi ugqozi nabanye). Sebenzisa Ekwelapheni izifundo lembula zokwelapha ngazinye CNS pathologies, ichaze indlela entsha izinkinga ezithile zokwelapha.