Ide K, Shirai Y, Ito H, Ito H
Department of Anatomy and Orthopaedic Surgery, Nippon Medical School, Tokyo, Japan.
J Shoulder Elbow Surg. 1996 Sep-Oct;5(5):371-82. doi: 10.1016/s1058-2746(96)80069-3.
The subacromial bursa is the major component of the subacromial gliding mechanism. The neural elements of the subacromial bursa obtained from specimens that underwent autopsy and surgery were investigated by the silver impregnation and immunohistochemical methods with antisera to substance P and calcitonin gene-related peptide; which are considered to be involved in nociceptive transmission, and protein gene product 9.5. Free nerve endings, Ruffini endings, Pacinian corpuscles, and two kinds of unclassified nerve endings were observed. Most of these receptors were observed of the roof side of the coracoacromial arch, which is exposed to stress because of the impingement. A delta and C fibers, thought to be nerve fibers of free nerve endings, were immunoreactive to substance P and calcitonin gene-related peptide. On the other hand, thick fibers thought to originate in encapsulated mechanoreceptors were not immunoreactive to substance P. The subacromial bursa receives nociceptive stimuli and proprioception and seems to regulate appropriate shoulder movement.
肩峰下囊是肩峰下滑行机制的主要组成部分。采用银浸染法和免疫组化方法，用抗P物质、降钙素基因相关肽（被认为参与伤害性感受传递）及蛋白基因产物9.5的抗血清，对取自尸体解剖和手术标本的肩峰下囊的神经成分进行了研究。观察到了游离神经末梢、鲁菲尼小体、环层小体和两种未分类的神经末梢。这些感受器大多见于喙肩弓的顶部，由于撞击，此处承受应力。被认为是游离神经末梢神经纤维的Aδ纤维和C纤维对P物质和降钙素基因相关肽呈免疫反应。另一方面，被认为起源于被囊化机械感受器的粗纤维对P物质不呈免疫反应。肩峰下囊接受伤害性刺激和本体感觉，似乎对肩部的适当运动起调节作用。
