Formation Reticular. Xiriirka la reactions motor ka

formation reticular Brainstem waa formation of plexiform, hannaanka dhismeedka neural, oo ku yaalla bartamaha (thalami, maskax iyo medulla). Neurons in ay ka samaysan, kala duwan ee size, oo dhererkiisu wuxuu neurite, qaab-dhismeedka. Dabaaldegay ay dunta cufan.

Hawlaha dhismaha reticular

Formation la xiriira cerebellum ah, laf-dhabarta, kiliyaha ee barka ah ee maskaxda, limbic ah (bixinta dhibaatooyinka ugu muhiimsan ee jirka) nidaamka. In formation of mesh ku dhexgalaan baxaya (afferent) oo ku soo degaya (efferent) la karsado. digir The wareejin karo oo la xiray neural circuit. Xaaladdan oo kale, caro joogto ah waxaa la siiyaa ee neurons formation reticular heer qaar ka mid ah. Natiijadu waxay tahay ballan gaar ah si ay hawlaha waaxyaha kala duwan ee habka dhexe ee neerfayaasha. Qabsashada heerka uu excitation of formation mesh waxaa lagu fuliyaa barka jilif.

formation Reticular ka kooban yahay gobollada awood u siinaya ama fududeynta saamaynta inhibitory on reactions motor spinal.

Waayo, markii ugu horeysay ee xiriirka ka dhexeeya hummaag spinal iyo kicinta ah ee meelo kala duwan oo formation mesh la helay I. M. Sechenovym. Ka dibna, Megounom ku neurophysiologist American iyadoo ay kaalmo ka mid ah shaqaalaha la si cad u muujiyey in ayadoo la eegayo ee Sechenov.

Sidaas darteed, marka dareenka korontada duurka dillaac fudud ee daayeer anesthetized iyo bisadaha jiro joojinta dhamaystiran oo dhaqdhaqaaqa, sida reflex ah, iyo sababa kicinta of zones motor of kiliyaha cerebral. Oo dhammuna wuxuu ifafaale kala jejebiyey in dhirfinaya dhismaha reticular, ayaa lagu sameeyay cuncun, waa laba geesoodka ah ee dabiiciga ah.

Markii loo feydo aagga lateral reticular formation ka maqnaadaan, dadkaas oo ah gobolka saamayn inhibitory ogaado fududeynta saamayn on hawlaha motor spinal.

Aasaasidda reticular waa in ay ka shaqeeyaan waxbarashada spinal kala duwan awoodaan.

Waa in la ogaadaa in aagga of formation mesh ah, haysashada saamayn fududeynta hawlaha motor anteriorly kordhiyay. Sidaas darteed, waxay qarinayaan ma aha oo kaliya aagga of oblongata medulla ah, laakiin ay maskax iyo pons.

waxbarashada Net saamayn kartaa muruq. Tani dhagax adag R. meel furan. neurophysiologist Swedish muujisay in dhismaha reticular saamaynaysa inta badan howliha ee neurons motor gamma. Axon ay dhex maraan waxa loogu yeero "intrafuzarnym" fiiloyin muruqa iyo jimicsi door muhiim ah ka sharciyeynta wajiga of dhaqdhaqaaqa jidhka iyo postures.

meelo kala duwan oo formation reticular ku yeelan kartaa saamayn kobcinaya on dabeecadda guud ee kiliyaha cerebral, wadahadal kula jirtaa dhamaan ay aagga.

Joogtaynta hawl formation mesh iyo dareen in xubno kala duwan kiimikada ee dhiigga ku jira waxaa lagu fuliyaa arrimo humoral (carbon dioxide, catecholamines, iwm ..). Tani, markeeda, kordhinayaan in is-dhexgalka ee formation reticular in sharciyeynta hawlaha autonomic qaar ka.

Waa in la ogaadaa in daraasadda of xiriirka of formation mesh la dhismayaasha kale subcortical ah, waxa ay inoo ogolaatay inaan tijaabiyo sifooyinka habab neurophysiological nooca wadamadda (xanuunka, jeedisay, hurdo, feejignaan, dalalka dareenka iyo dhiirigalinta iyo kuwo kale). Isticmaal in waxbarashada Medicine muujinayaa daaweynta gaarka ah ee heley habdhiska dhimirka, la qeexo hab cusub oo dhibaatooyin caafimaad qaarkood.