Neiroanatomia - Dak.indd
Neiroanatomia - Dak.indd
Neiroanatomia - Dak.indd
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Tavi 3<br />
birTvebi, Savi substancia, saxuravi firfitis birTvebi (daraSkevi-<br />
Cis birTvebi), qvemo olivebi, wiTeli birTvebi da naTxemis birTvebi<br />
(radgan wiTeli birTvebi dakavSirebulia naTxemis birTvebTan, amitom<br />
naTxemis birTvebic Sedian eqstrapiramiduli sistemis Semadgenloba-<br />
Si). am rgolSi mTavaria kudiani da ospisebri birTvebi.<br />
premotoruli zonidan gamosuli boWkoebi gaivlian SigniTa kafsulas,<br />
mxedvelobis borcvs da zolian sxeuls. zoliani sxeulidan boWkoebi<br />
gamodian ospisebri maryuJiT da midian subTalamur birTvebSi,<br />
Sav substanciaSi, wiTel birTvebSi, saxuravi firfitis birTvebSi da<br />
qvemo olivaSi. am gziT wamosuli impulsebi midian zurgis tvinis wina<br />
rqebis motorul ujredebTan, romelTa aqsonebi ConCxis kunTebs ukav-<br />
Sirdebian (aq mTavrdebian).<br />
eqstrapiramiduli gzebis dazianebis dros qveiTdeba kunTebis tonusi<br />
– mzadyofna aqtiuri SekumSvisaTvis. aRiniSneba moZraobis gaiSviaTeba<br />
da Seneleba mkrTali sferos dazianebis dros, xolo krunCxviTi,<br />
qoreuli moZraobebi – zoliani sxeulis dazianebis dros.<br />
rubro-spinaluri gza – tractus rubrospinalis. am traqtis boWkoebi<br />
iwyebian Sua tvinis saxuravis centralur nawilSi mdebare wiTeli<br />
birTvebidan (nucleus ruber). wiTeli birTvebi dakavSirebulia naTxemTan.<br />
wiTeli birTvebidan gamosuli boWkoebi srulad gadajvaredindebian,<br />
warmoqmnian saxuravis ventralur (forelis) jvaredins – decussatio tegmentalis<br />
ventralis, (decusatio Foreli ) da daswvrivad miemarTebian; gaivlian<br />
xids, mogrZo tvins da Tavsdebian zurgis tvinis gverdiT larSi (kortiko-spinaluri<br />
lateraluri gzis win da spino-cerebelaruli wina<br />
traqtis medialurad). rubro-spinaluri gza zurgis tvinis bolomde<br />
grZeldeba. amasTanave, misi moculoba TandaTanobiT mcirdeba kaudaluri<br />
mimarTulebiT, radgan am traqtis boWkoebi gzadagza Sedian<br />
zurgis tvinis rux nivTierebaSi da sinafsur kontaqts amyareben wina<br />
rqis mamoZravebel ujredebTan. wina rqebidan gamosuli boWkoebi Sedian<br />
zurgis tvinis nervebis SemadgenlobaSi da ConCxis kunTebs gadascemen<br />
naTxemidan miRebul informacias. wiTeli birTvebi naTxemidan<br />
Rebuloben informacias naTxemis zeda fexebis saSualebiT. wiTel<br />
birTvebs boWkoebs ugzavnis, agreTve, Tavis tvinis qerqi. amgvarad,<br />
kortiko-rubruli da rubro-spinaluri sinafsuri kavSirebis er-<br />
Toblioba aris somatotopiurad organizebuli eqstrapira miduli<br />
gamtari gza qerqis motorul zonasa da calkeul spinalur segments<br />
Soris.<br />
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