Cerebral vasodilator nerves and their pathway from the medulla oblongata - With observations on the pial and intracerebral vascular plexus
Cerebral vasodilator nerves and their pathway from the medulla oblongata - With observations on the pial and intracerebral vascular plexus
复制标题
DOI：
10.1001/archneurpsyc.1932.02240060016002
复制
发表时间：
1932-12-01
影响因子：
--
通讯作者：
Penfield, W
中科院分区：
文献类型：
--
作者：
Chorobski, J;Penfield, W
在猴面神经中，有一条从延髓到脑血管的传出冲动通路。在这条通路上的任何一点进行电刺激，都会使软脑膜的动脉扩张。这种神经与颈交感神经干在这些动脉上的作用是相互拮抗的，可以称之为副交感神经。解剖学上，在膝状神经节的近端有一束细小的有髓和无髓纤维，可辨认为Wrisberg中间神经的不同部分。该束直接进入岩浅大神经，不中断神经节。沿着神经，一束明显的纤维束从岩浅大段传到颈内动脉上的神经丛。吻合口有一个恒定的小神经节，神经节细胞散在分布。在脑内动脉上发现了类似运动终板的小神经末梢，这表明它们也可能具有收缩和扩张的能力，这只能通过对软脑膜动脉的直接观察来证明。切除岩浅大神经和交感神经后，软脑膜血管和脑内血管仍有丰富的正常神经纤维供应。因此，很明显，不可能通过同时去除交感神经和副交感神经来去神经支配脑血管。
In the facial nerve of monkeys there is a pathway for efferent impulses from the medulla oblongata to the cerebral vessels. Electrical stimulation at any point on this pathway produces dilatation of the arteries of the pia mater. This innervation, being antagonistic to that of the cervical sympathetic trunk in its action on these arteries, may be termed parasympathetic. Anatomically, there is a bundle of small myelinated and non-myelinated fibers recognizable as a distinct portion of the n. intermedius of Wrisberg just proximal to the geniculate ganglion. This bundle passes directly into the greater superficial petrosal nerve without interruption in the ganglion. Further along the nerve, a distinct bundle of fibers passes from the greater superficial petrosal to the plexus of nerves on the internal carotid. There is a constant small ganglion here with scattered ganglion cells in the anastomosis. Small nerve endings resembling motor end plates are found on the intracerebral arteries, suggesting that they, too, may be capable of the contraction and dilatation which can be demonstrated by direct observation only in the case of the pial arteries. When both greater superficial petrosal and sympathetic nerves are removed, the pial and intracerebral vessels are still richly supplied with normal nerve fibers. It becomes evident, therefore, that it is impossible to denervate the cerebral vessels by removing both sympathetic and parasympathetic innervation.