Dab tsi yog abduction ntawm qhov muag?
Dab tsi yog abduction ntawm qhov muag?

Video: Dab tsi yog abduction ntawm qhov muag?

Video: Dab tsi yog abduction ntawm qhov muag?
Video: Qhov Ntawm Ko Yog Dab Tsi 2024, Lub rau hli ntuj
Anonim

Cov leeg nqaij extraocular ua qhov muag txav thiab yog innervated los ntawm peb cranial qab haus huv. Kev cog lus ntawm qhov nruab nrab qhov quav rub tawm qhov muag ntawm lub qhov ntswg (kev txav los yog kev txav nruab nrab). Contraction ntawm lateral rectus rub lub qhov muag deb ntawm lub qhov ntswg ( kev nyiag los yog lateral txav).

Ntawm no, nws txhais li cas rau abduct lub qhov muag?

Strabismus yog a position ua qhov muag lawv nyob qhov twg yog tsis hais txog tib lub hom phiaj (hauv qee qhov ntawm lub tebchaws no yog npe hu ua "squint"). Kev rho tawm yog nqa tus menyuam tawm ntawm lub qhov ntswg. Adduction yog nqa tus menyuam mus rau ntawm lub qhov ntswg. Siab yog txav tus menyuam kawm ntawv saum lub qab ntuj.

Ib yam li ntawd, qhov sib txawv ntawm qhov muag yog dab tsi? Kev txav chaw

Cov leeg Innervation Thawj qhov ua
Inferior rectus Oculomotor paj (ceg qis dua) Kev nyuaj siab
Superior oblique Trochlear paj Incyclotorsion
Oblique tsis zoo Oculomotor paj (ceg qis dua) Excyclotorsion
Levator palpebrae superioris Oculomotor paj hlwb Nce / retraction ntawm daim tawv muag sab sauv

Ua qhov no hauv kev txiav txim siab, Intorsion ntawm lub qhov muag yog dab tsi?

Qhov muag Kev txav chaw. Kev nce siab thiab kev nyuaj siab ntawm cov qhov muag yog hu ua sursumduction (supraduction) thiab deorsumduction (infraduction), feem. Incycloduction ( kev nkag siab ) yog qhov ntswg rotation ntawm ntsug meridian; excycloduction (extorsion) yog ib ntus kev sib hloov ntawm ntsug meridian. (Saib daim duab hauv qab no.)

Qhov chaw thib ob ntawm qhov muag yog dab tsi?

Txoj haujlwm thib ob yog nce, nqis, sab xis, thiab sab laug ntsia. Cov no yog ua tiav los ntawm kev hloov pauv ntshiab txog kab rov tav (x) lossis ntsug (z). Tertiary txoj haujlwm yog oblique txoj haujlwm : nce thiab sab xis, nce thiab sab laug, nqis thiab sab xis, thiab nqis thiab sab laug [4].

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