Bistevins R, Awad E A
Arch Phys Med Rehabil. 1981 Feb;62(2):74-83.
The structure and ultrastructure of 122 lamellated corpuscles and 33 Golgi tendon organs (GTO) from adult human musculotendinous junctions were studied by light microscope and electron microscope techniques. One Meissner corpuscle from a human fingertip was examined for comparison. At the musculotendinous junction the axon terminals of the GTO were observed in direct contact with the tendon collagen. The lamellated corpuscles were located in the connective tissue surrounding the musculotendinous junction. The axon terminals of the lamellated corpuscles were separated from the surrounding tissues by the inner core lamellar cell processes and the capsule layers. A great variation in the structure of both types of receptors was observed. The lamellated corpuscles that were found close to the musculotendinous junction and the GTO may respond simultaneously to muscular contraction, thus providing proprioceptive feedback for sensorimotor control from within the tendon and from the tissues surrounding the musculotendinous junction. Mechanoreceptors found in dermis, subcutaneous and deep tissues can be classified into 2 broad groups. This practical morphologic classification is based on the characteristics of the sensory nerve terminals which have been found to be in contact with the surrounding tissue (muscle spindle, GTO) or with the lamellar cell processes (Vater, Pacini, Meissner), rather than the inconsistent features of the entire receptor such as the size, the shape, or the encapsulation.
采用光学显微镜和电子显微镜技术，对取自成人肌肉肌腱连接处的122个环层小体和33个高尔基腱器官（GTO）的结构和超微结构进行了研究。为作比较，还检查了取自人类指尖的1个迈斯纳小体。在肌肉肌腱连接处，观察到GTO的轴突终末与肌腱胶原直接接触。环层小体位于肌肉肌腱连接处周围的结缔组织中。环层小体的轴突终末被内核层状细胞突起和被膜层与周围组织分隔开。观察到这两种类型感受器的结构有很大差异。在肌肉肌腱连接处附近发现的环层小体和GTO可能会同时对肌肉收缩作出反应，从而为来自肌腱内部和肌肉肌腱连接处周围组织的感觉运动控制提供本体感觉反馈。在真皮、皮下组织和深部组织中发现的机械感受器可分为两大类。这种实用的形态学分类是基于感觉神经终末的特征，这些终末已被发现与周围组织（肌梭、GTO）或与层状细胞突起（瓦特小体、帕西尼小体、迈斯纳小体）接触，而不是基于整个感受器的不一致特征，如大小、形状或被膜情况。
