Mohamed A A, Parker T L, Coupland R E
Department of Human Morphology, University of Nottingham Medical School, Queen's Medical Centre, UK.
J Anat. 1988 Oct;160:51-8.
The sensory innervation of the guinea-pig adrenal medulla was studied using the fluorescent retrograde tracer Fast Blue. Labelled neurons were found in the dorsal root ganglia at segments T3-L2, the greatest contribution arising from T10 representing 15.2% of the total number of labelled cells. Labelling was ipsilateral to the site of injection of tracer into the adrenal medulla and the labelled neurons ranged in size between 6 and 36 microns. The overall size distribution fell into two groups of between 6 and 15 microns and of between 18 and 36 microns. Presumed sensory nerve endings were found in the adrenal medulla associated with chromaffin cells and vascular elements. The nerve endings were ovoid to spherical and densely packed with mitochondria. It is concluded that events occurring in the guinea-pig adrenal medulla, and possibly cortex, are monitored by sensory nerve terminals whose cell bodies lie within dorsal root ganglia. The exact distribution of the sensory nerve terminals within the adrenal gland is yet to be determined.
利用荧光逆行示踪剂快蓝对豚鼠肾上腺髓质的感觉神经支配进行了研究。在胸3至腰2节段的背根神经节中发现了标记神经元，其中最大的贡献来自胸10，占标记细胞总数的15.2%。标记与示踪剂注入肾上腺髓质的部位同侧，标记神经元的大小在6至36微米之间。总体大小分布分为两组，一组在6至15微米之间，另一组在18至36微米之间。在肾上腺髓质中发现了与嗜铬细胞和血管成分相关的推测感觉神经末梢。神经末梢呈卵圆形至球形，线粒体密集分布。得出的结论是，豚鼠肾上腺髓质以及可能的皮质中发生的事件由感觉神经末梢监测，其细胞体位于背根神经节内。肾上腺内感觉神经末梢的确切分布尚待确定。
