| 摘要: |
| 用HRP法研究了兔舌下神经的纤维成分和起源。将HRP注入舌下神经干,舌下神经核内几乎所有神经元均被标记,均为大多极细胞;三叉神经节和C2-4脊神经节出现大量标记细胞,以直径15～30μm的小细胞为主;同侧颈上节有大量标记细胞出现。结果表明:舌下神经是含有一般躯体传出、一般躯体传入和一般内脏传出3种成分的混合神经。并对传统舌下神经的概念作了补充和修正。此外,发现多例兔舌下神经干中,仅一例有小神经节存在,由此认为它是一种不恒定结构。对舌下神经干、舌肌及舌粘膜3组标记的感觉神经元比较,推测出舌肌梭本体感觉可能经由三叉神经的舌神经支传导。 |
| 关键词: 舌下神经,纤维成分,兔,HRP法 |
| DOI： |
| 分类号:S852.165 |
| 基金项目:国家自然科学基金资助项目（39570540） |
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| Fiber Components of Rabbit Hypoglossal Nerve—HRP Method |
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| Abstract: |
| HRP was injected into the hypoglossal nerve of rabbit.The labelled cells were not only found in large multipolar cells in hypoglossal nucleus,but also in cranial cervical ganglion,C2-4 spinal ganglion and trigeminal ganglion.The hypoglossal nerve contained three types of fiber components,i.e.general somatic efferent,general somatic efferent and general visceral efferent.A small ganglion was found in hypoglossal nerve trunk in one of the many cases.It is indicated that this ganglion was an inconsistant structure.The origin of sensory fiber innervating the musculus,mucous of linguae and hypoglossal sensory fiber was compared,which suggested that the proprioception musculus linguea might be conducted through the lingual branch of trigeminal nerve. |
| Key words: hypoglossal nerve,component,rabbit,HRP method |
