SENSORY NERVE-ENDINGS IN RHESUS-MONKEY SINUS HAIRS
SENSORY NERVE-ENDINGS IN RHESUS-MONKEY SINUS HAIRS
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DOI：
10.1002/cne.901920403
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发表时间：
1980-01-01
影响因子：
2.5
通讯作者：
MUNGER, BL
中科院分区：
文献类型：
--
作者：
HALATA, Z;MUNGER, BL
通过光学显微镜和电镜研究了灵长类窦毛的感觉神经支配。对于光学显微镜检查，石蜡切片和厚冷冻切片用 Ag 浸渍，并与为 EM 制备的连续半薄组织切片进行比较。一种类型的感觉末梢存在于毛囊周围的表皮中，并且在血窦内已鉴定出 4 种特定的神经末梢。表皮网状脊领圈环绕毛干并包含.apprx。 200 个默克尔细胞神经突复合体。许多其他默克尔细胞-神经突复合物存在于毛囊的外部根鞘中，位于由大约 .apprx 支配的厚玻璃状膜下方。 65 条神经纤维。在这个水平上，结缔组织中有 10-15 个披针形或栅栏状末端。在披针形末端和默克尔细胞末端的水平上方可以识别出多达 10 个简单的封装小体。鲁菲尼小体紧密贴附在披针形和默克尔末端下方的玻璃膜上，位于神经纤维穿透窦囊的水平。所有这些末端均由 80-100 个大直径有髓纤维提供，分布大致如下：65 个支配默克尔细胞神经突复合体，15 个为披针形，10 个为简单小体，10 个为鲁菲尼小体。网状脊环的神经支配独立于窦的神经支配，由源自浅层真皮网络的 10-12 根纤维组成。这些感觉终端中的每一个都可以与许多神经生理学研究中描述的特定功能参数相关联。默克尔细胞神经突复合物和鲁菲尼小体正在缓慢适应受体；披针形末端和简单小体是快速适应的受体。
The sensory innervation of primate sinus hair was studied by light microscopy and EM. For light microscopy, paraffin sections and thick frozen sections were impregnated with Ag and compared with serial semi-thin sections of tissue prepared for EM. One type of sensory terminal is present in the epidermis surrounding the hair follicle, and 4 specific nerve terminals have been identified within the blood sinus. An epidermal rete ridge collar encircles the hair shaft and contains .apprx. 200 Merkel cell-neurite complexes. Numerous other Merkel cell-neurite complexes are present in the external root sheath of the hair follicle beneath a thick glassy membrane innervated by .apprx. 65 nerve fibers. At this level, 10-15 lanceolate or palisade terminals are situated in the connective tissue. Up to 10 simple encapsulated corpuscles can be identified above the level of lanceolate endings and Merkel cell terminals. Ruffini corpuscles are closely applied to the glassy membrane below the lanceolate and Merkel terminals at the level where nerve fibers penetrate the capsule of the sinus. All of these terminals are supplied by 80-100 large diameter myelinated fibers distributed approximately as follows: 65 innervate Merkel cell-neurite complexes, 15 to lanceolate, 10 to simple corpuscles and 10 to Ruffini corpuscles. The innervation of the rete ridge collar is independent of that of the sinus, consisting of 10-12 fibers derived from the superficial dermal network. Each of these sensory terminals can be correlated with specific functional parameters as described in numerous neurophysiologic studies. Merkel cell-neurite complexes and Ruffini corpuscles are slowly adapting receptors; lanceolate terminals and simple corpuscles are rapidly adapting receptors.