Video: Yuav ua li cas trigeminal lemniscus tsim?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov mob-nqa cov fibers ua tus txha caj qaum ntawm V-nqis los ntawm midpons mus rau qis medulla-synapse hauv tus txha caj qaum ntawm V-cross diffusely to daim ntawv lub contralateral trigeminal lemniscus (ntawm midpons) → VPM nucleus ntawm thalamus → synapse → los ntawm sab nraub qaum ntawm sab hauv tshuaj ntsiav rau sab nraub qaum
Thiaj li, dab tsi yog trigeminal Lemniscus?
Cov trigeminal lemniscus yog ib feem ntawm lub paj hlwb uas nthuav tawm qhov ua tau zoo, qhov mob, thiab qhov kub thiab txias los ntawm daim tawv nqaij ntawm lub ntsej muag, cov hnoos qeev ntawm qhov ntswg thiab qhov ncauj kab noj hniav, thiab lub qhov muag, nrog rau cov ntaub ntawv tsim tawm los ntawm lub ntsej muag thiab cov leeg nqaij.
Spinal Lemniscus yog dab tsi? - anterolateral system (anterior thiab lateral spinothalamic tracts) Hauv cov ntsiab lus qub, yav dhau los thiab sab nraub qaum spinothalamic kab mob tseem tsis sib xws thaum nce hauv tus txha nqaj qaum qaum. Hauv medulla, ob txoj kab ke sib koom ua ke nrog txoj kev spinotectal thiab txoj kab ke ua ke yog hu ua tus txha nqaj lemniscus.
Ib qho ntxiv, Trigeminothalamic txoj hnyuv yog dab tsi?
Txhais. Trigeminothalamic kab mob xa mus rau txoj hauv kev ntawm lub paj hlwb ntawm V (trigeminal nerve) thiab tus thawj xibfwb (tus thawj) nucleus ntawm V mus rau ventral posterior medial nucleus ntawm thalamus. Ob leeg sib cais trigeminothalamic kab mob tau txheeb xyuas: ventral thiab dorsal txoj kab.
Cov kab ntawv dab tsi nyob hauv nruab nrab lemniscus?
Lub ntsiab somatosensory daim ntawv los ntawm tus txha nqaj qaum, txoj kev gracile thiab cuneate, synapse nyob rau hauv gracile thiab cuneate nuclei ntawm caudal hindbrain (Daim duab. 12.18–12.19). Cov axons los ntawm gracile thiab cuneate nuclei hla txoj kab nruab nrab los tsim lemniscus nruab nrab (Daim duab.
Pom zoo:
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