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首页> 外文期刊>日本家禽学会誌 >Innervation pattern of acetylcholinesterase (AChE)-positive nerves in the internal carotid artery and cerebral arterial tree of the pigeon
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Innervation pattern of acetylcholinesterase (AChE)-positive nerves in the internal carotid artery and cerebral arterial tree of the pigeon

机译：鸽子颈内动脉和脑动脉树中乙酰胆碱酯酶（AChE）阳性神经的神经支配方式

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摘要

The pathway and distribution of nerves positive for acetylcholinesterase (AChE) in the internal carotid artery (ICA) and cerebral arterial tree were investigated histochemically in the pigeon. In this bird, cerebral perivascular AChE nerves originated mainly in AChE nerve cells within the ganglia found in the ICA near the cranial cavity. Some of the AChE fiber bundles from the ganglia made up very dense plexuses of AChE nerves throuhout the distal segment of the ICA. Others projected to the cerebral arterial tree via the cerebral carotid artery, and spread rostrally and caudally to send abundant AChE axons to the major cerebral arteries of both the internal carotid and vertebrobasilar systems (ICS, VBS). In addition to this major neuronal pathway,a substantial amount of AChE nerves also projected to the ICS via the internal ethmoidal artery and to the VBS via the vertebral artery. Consequently, the ICA and major cerebral arteries in the pigeon received the richest supply of AChE nerves among theavian species studied so far. This finding may suggest the great significance of cholinergic vasomotor actions for functioning of these arteries in the blood supply to the pigeon brain.
机译：对鸽子的颈内动脉（ICA）和脑动脉树中的乙酰胆碱酯酶（AChE）阳性神经的途径和分布进行了组织化学研究。在这只鸟中，脑血管周围的AChE神经主要起源于在颅腔附近的ICA中发现的神经节内的AChE神经细胞。来自神经节的一些AChE纤维束在ICA的远端部分组成非常密集的AChE神经丛。其他的则通过脑颈动脉投射到脑动脉树上，并向尾和尾扩散，从而将大量的AChE轴突发送到颈内和椎基底系统的主要脑动脉（ICS，VBS）。除了这种主要的神经元途径外，大量的AChE神经还通过筛骨内动脉投射到ICS，并通过椎动脉投射到VBS。因此，迄今为止，在鸽系中，ICA和鸽子的主要脑动脉供应的AChE神经最为丰富。这一发现可能表明胆碱能血管舒缩作用对鸽子大脑供血中这些动脉的功能具有重要意义。

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