Guglielmone R, Cantino D
Cell Tissue Res. 1982;222(2):417-31. doi: 10.1007/BF00213222.
The distribution pattern of adrenergic fibres innervating the ocular choroid membrane of the chicken was studied by means of fluorescence and electron microscopy. In addition, the origin of these fibres was investigated after superior cervical ganglionectomy. Adrenergic axons reach the choroid, partly forming the perivascular plexuses and partly running in the choroid nerves and the choroidal branches of the ciliary nerves. The axon terminals distribute to the smooth muscle cells of the arterial wall and to the extensive system of smooth muscle cells of the intervascular stroma. After unilateral ganglionectomy, fluorescent fibres almost completely disappeared, and degenerative changes could be observed in the terminal varicosities on both smooth muscle cell populations. These findings suggest that the adrenergic axons either originate from neurones within the ipsilateral superior cervical ganglion, or pass through this ganglion. The persistence of normal terminals in short- and long-term ganglionectomised animals shows that the vasal and intervascular muscle cells of the choroid membrane are provided with both an adrenergic and a cholinergic innervation.
运用荧光显微镜和电子显微镜技术，研究了支配鸡眼脉络膜的肾上腺素能纤维的分布模式。此外，在切除颈上神经节后，对这些纤维的起源进行了研究。肾上腺素能轴突到达脉络膜，部分形成血管周围丛，部分走行于脉络膜神经和睫状神经的脉络膜分支中。轴突终末分布于动脉壁的平滑肌细胞以及血管间基质广泛的平滑肌细胞系统。单侧神经节切除后，荧光纤维几乎完全消失，并且在这两种平滑肌细胞群的终末膨体中可观察到退行性变化。这些发现表明，肾上腺素能轴突要么起源于同侧颈上神经节内的神经元，要么穿过该神经节。在短期和长期神经节切除动物中正常终末的持续存在表明，脉络膜的血管和血管间肌细胞同时接受肾上腺素能和胆碱能神经支配。
