Morphological Observation on Silver-impregnated Nerve Endings in Human Interarytenoid Muscle
Morphological Observation on Silver-impregnated Nerve Endings in Human Interarytenoid Muscle
复制标题
人杓间肌浸银神经末梢的形态观察
DOI：
10.2468/jbes.41.270
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Y. Katto
中科院分区：
文献类型：
--
作者：
Y. Katto
采用贝克氏浸渍银材料对人腱间肌神经末梢进行了光镜研究。除普通运动神经末梢外，在肌纤维周围还有三种神经末梢呈环状或螺旋状。第一种末梢由一层厚的髓鞘纤维组成，它紧密地包围和包裹着肌纤维。髓鞘纤维的分支零星地形成末端钮扣和环。这种类型被确定为螺旋神经末梢。第二类神经末梢有几个肌纤维，既有螺旋神经末梢，也有运动神经末梢。这种末端被认为是肌纺锤体。第三种末梢由螺旋末梢和运动神经末梢两部分组成，可以认为是混合型的神经末梢或弥漫型的运动末梢。这些是我们的第一份报告的附加发现，揭示了肌纺锤体在喉内肌的存在。类似的系统只在眼外肌中被发现。
Light microscopic study of nerve endings in the human interarytenoid muscle was carried out by using the Baker's silver impregnated materials.In addition to the ordinary motor nerve endings, there were three types of nerve endings surrounding the muscle fibers in an annular or helical manner.The first type of the ending was composed of a thick myelinated fiber which tightly encircled and wrapped the muscle fibers. Branches from the myelinated fibers sporadically formed end buttons and loops. This type was determind as the spiral nerve ending.The second type of the ending had several muscle fibers possessing both the spiral nerve ending and motor nerve ending. This type of the ending was considered to be the muscle spindle.The third type of the ending was composed of both the spiral ending and motor nerve ending, which were thought to be either the nerve ending of the mixed type or the motor ending of the diffuse type.These were the additional findings to our first report that revealed the presence of muscle spindles in the intrinsic laryngeal muscles. A similar system has been found only in the outer ocular muscles.