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大鼠延髓腹外侧表面化学感受区与延髓内部核团的联系

田国锋, 钱梓文, 苏清芬, 张镜如

上海医科大学生理学教研室. 上海 200032

摘要

大鼠延髓腹外侧表面的头端化学感受区(R区)表面敷贴辣根过氧化物酶(HRP)后, 在延 髓斜方体核(Tz)、外周橄榄腹外侧核(LVPO)和斜方体后核(NRT)均有HRP标记细胞存在; 于尾端化学感受区(C区)表面敷贴HRP后, 在延髓的巨细胞旁外侧核(LPGi)、外侧网状核(LRt)和舌下神经核有HRP标记细胞存在; 于中间区(I区)表面敷贴HRP后, 在6只大鼠的延 髓内部区域仅观察到8个HRP标记细胞; 于对照区敷贴HRP后, 在4只大鼠的延髓内部区域 仅观察到6个HRP标记细胞, 散在地分布在头端腹外侧网状核。

关键词： 中枢化学感受; 延髓腹外侧表面中枢化学感受区; 辣根过氧化物酶

Neural structural relations between the chemosensitive areas of the ventrolateral medullary surface and the medullary nuclei in rats

Tian Guofeng, Qian Ziwen, Su Qingfen, Zhang Jingru

Department of Physiology, Shanghai Medical University. Shanghai 200032

Abstract

After HRP application to the rostral area (n=10), quite a number of labelled cells were distributed at the ventrolateral part of the nucleus of trapezoid body (Tz), the lateroventral periolivary nucleus (LVPO) and the retrotrapezoid nucleus (NRT). After HRP application to the caudal area (n=10), HRP labelled cells were mainly located at the lateral reticular nucleus (LRt) and the ventral part of at the lateral paragigantocellular nucleus LPGi. After HRP application to the intermediate area (n=6), only 8HRP labelled cells were observed at the (LPGi) in 6rats. After HRP application to the control area (n=4), only 6HRP labelled cells were found at the rostral ventrolateral reticular nucleus (RVL).

Key words: Central chemoreception;Ventrolateral medullary surface;Chemosensitive areas

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引用本文：

田国锋, 钱梓文, 苏清芬, 张镜如. 大鼠延髓腹外侧表面化学感受区与延髓内部核团的联系[J]. 生理学报 1995; 47 (5): .

Tian Guofeng, Qian Ziwen, Su Qingfen, Zhang Jingru. Neural structural relations between the chemosensitive areas of the ventrolateral medullary surface and the medullary nuclei in rats. Acta Physiol Sin 1995; 47 (5): (in Chinese with English abstract).