大鼠颈动脉体I型细胞神经末梢的定量研究。
Quantitative studies of rat carotid body type I cell nerve endings.
作者信息
Pallot D J, Blakeman N
出版信息
Acta Anat (Basel). 1986;126(4):212-7. doi: 10.1159/000146219.
The results of a stereological and morphometric analysis of rat carotid body type I cell nerve endings are described. 66.9% of endings possessed symmetrical junctions. Of the remaining endings, 3.6% were presynaptic and 26% were postsynaptic to type I cells; 3.6% of endings had a reciprocal configuration. Apart from membrane specialisations, no other ultrastructural criteria were found to distinguish the different types of endings. Ventilation with 100% and 10% oxygen showed that the hypoxic mixture reduced synaptic vesicle concentration in the nerve endings; this effect was independent of the innervation to the carotid body.
本文描述了大鼠颈动脉体I型细胞神经末梢的体视学和形态测量分析结果。66.9%的末梢具有对称连接。其余末梢中，3.6%为I型细胞的突触前末梢，26%为突触后末梢；3.6%的末梢具有相互配置。除了膜特化外，未发现其他超微结构标准来区分不同类型的末梢。用100%和10%氧气通气表明，低氧混合物降低了神经末梢中突触小泡的浓度；这种效应与颈动脉体的神经支配无关。
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