CAJ | 학술논문

目的　探讨脊髓长下行固有束在腰膨大的分布。方法　用成年家兔25只，分两组进行，第一组15只行溃变法和铜银顺行追踪法。第二组10只葡聚糖胺结合免疫组化法(ABC法)顺行追踪脊髓长下行固有束在腰膨大的投射。结果　两组的实验结果基本一致，在腰膨大处，溃变终末或标记终末可见于双侧的灰质内，并主要见于同侧；其分布较为广泛，主要见于灰质Ⅴ-Ⅸ层，以Ⅶ层和Ⅷ层较为密集。结论　来自颈段的脊髓长下行固有束可投射到腰膨大，为探讨下肢运动的调控提供了进一步的形态学资料。
목적　탐토척수장하행고유속재요팽대적분포。방법　용성년가토25지，분량조진행，제일조15지행궤변법화동은순행추종법。제이조10지포취당알결합면역조화법(ABC법)순행추종척수장하행고유속재요팽대적투사。결과　량조적실험결과기본일치，재요팽대처，궤변종말혹표기종말가견우쌍측적회질내，병주요견우동측；기분포교위엄범，주요견우회질Ⅴ-Ⅸ층，이Ⅶ층화Ⅷ층교위밀집。결론　래자경단적척수장하행고유속가투사도요팽대，위탐토하지운동적조공제공료진일보적형태학자료。
ObjectiveTo explore the projections of the long descending propriospinal tracts to lumbar enlargement. Method　Anterograde tracing with cupric-silver staining. 10 animals were injected b biotinylated dextran in the upper cervical cord. Following survival times of 14 days, projections of the long descending propriospinal tracts were immunohistochemically demonstrated in the lumbar enlargement.Results　The degenerated terminals and labeled terminals were found in the bilateral gray matter of the lumbar enlargement, but predominantly ipsilaterally. The terminals were widely distributed in laminal Ⅴ-Ⅸ, heavily Ⅶ and Ⅷ. Conclusion　The long descending propriospinal tract from the upper cervical cord projects to the lumbar enlargement.