![Dab tsi yog cov qauv loj uas cov kab ke kho qhov muag hla mus? Dab tsi yog cov qauv loj uas cov kab ke kho qhov muag hla mus?](https://i.answers-medical.com/preview/medical-health/14168845-what-is-the-major-structure-that-the-optic-tract-goes-through-j.webp)
Video: Dab tsi yog cov qauv loj uas cov kab ke kho qhov muag hla mus?
![Video: Dab tsi yog cov qauv loj uas cov kab ke kho qhov muag hla mus? Video: Dab tsi yog cov qauv loj uas cov kab ke kho qhov muag hla mus?](https://i.ytimg.com/vi/mLyOEtJO9cY/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Optic cov hlab ntsha mus los dhau cov optic chaw mus rau lateral geniculate lub cev ntawm thalamus, thiab qhov muag cov duab hluav taws xob xaus rau hauv lub qhov muag occipital (Daim duab 1). Txhua qhov muag paj hlwb nqa cov fibers los ntawm tsuas yog ipsilateral retina, thaum lub optic chiasma muaj cov fibers los ntawm ob lub qhov muag.
Tsis tas li, cov qauv dab tsi ua rau lub paj hlwb nkag mus?
Cov paj hlwb optic tawm ntawm lub orbit ( qhov muag lub qhov (socket) ntawm tus kwj dej optic, khiav postero-medially mus rau optic chiasm , qhov twg muaj qhov kev txiav txim siab ib nrab (hla) ntawm cov fibers los ntawm thaj chaw pom kev ib ntus (lub qhov ntswg hemi- lub qhov muag ) ntawm ob lub qhov muag.
Tsis tas li ntawd, cov kab mob optic muaj dab tsi? Txhua optic tract muaj cov fibers los ntawm ipsilateral temporal thiab contralateral nasal retina. Yog li, txoj cai optic tract muaj fibers los ntawm txoj cai ib nrab ntawm sab xis thiab sab laug retinae, thiab sab laug kho qhov muag los ntawm sab laug ib sab ntawm sab xis thiab sab laug retinae ntawm lub qhov muag.
Tsis tas li ntawd, qhov kho qhov muag ua haujlwm li cas?
Cov sab laug optic cov hlab ntsha thiab cov kab mob optic. Cov kab ke kho qhov muag (los ntawm Latin tractus opticus) yog ib feem ntawm qhov pom kev hauv lub hlwb. Nws yog ib qho txuas ntxiv ntawm cov hlab ntsha optic uas xa cov ntaub ntawv los ntawm optic chiasm mus rau ipsilateral lateral geniculate cev (LGN), pretectal nuclei, thiab zoo dua colliculus.
Cov paj hlwb optic tsim li cas?
Extracranial. Cov optic paj hlwb yog tsim los ntawm kev sib tshuam ntawm axons los ntawm cov qog nqaij hlav retinal ganglion. Cov hlwb no tig tau txais qhov tsis txaus ntseeg los ntawm lub qhov muag pom ntawm lub qhov muag (pas nrig thiab lub khob hliav qab). Tom qab nws tsim , cov paj hlwb tawm ntawm pob txha pob txha los ntawm qhov muag kwj dej, ib txoj kev hla los ntawm cov pob txha sphenoid.
Pom zoo:
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