サル肩関節包の特殊神経終末に関する電顕組織化学的研究

DOI
  • 村上 元庸
    Department of Orthopaedic Surgery, Minakuchi Shimin Hospital
  • 小島 保二
    Department of Anatomy, Shiga University of Medical Science
  • 前田 敏博
    Department of Anatomy, Shiga University of Medical Science
  • 牧川方 昭
    Faculty of Engineering, Osaka University
  • 福田 眞輔
    Departmento f OrthopaedicS urgery, Shiga Univ. of Medical Science
  • 畑 正樹
    Departmento f OrthopaedicS urgery, Shiga Univ. of Medical Science
  • 吉川 玄逸
    Departmento f OrthopaedicS urgery, Shiga Univ. of Medical Science

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タイトル別名
  • Ultrastructure of Sensory Nerve Endings in Monkey Shoulder Joint Capsule

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An ultrastructural study of the sensory nerve endings in monkeys' shoulder joints was undertaken, stained by Tago's method, which is the histochemical staining of acetylcholinesterase.<BR>The Pacini-type corpuscle is oval in shape and it consists of inner and o uter cores. At the center of the inner core, there is an unmyelinated axon terminal. The axon terminal has numerous mitocondoria. The lamellated inner core is composed of Schwann cell processes. Reaction products are found in the space between the axon terminal and the lamellar cell processes, in the interlamellar spaces and in some caveolae.<BR>In the Ruffini-typ e corpuscle, the axon terminal loses its mylin sheath and branches several times. The axon terminals are incompletely surrounded by a Schwann cell cytoplasm. The axon terminal has numerous mitochondoria and agranular vesicles. The Schwann cell cytoplasm surrounds a bundle of collagen fibrils. The reaction products are found between the axon terminal and the Schwann cell cytoplasm, and also around the Schwann cell cytoplasm.<BR>From their characteristic structure, it seems that the Pac i n i-type corpuscles respond to a pressure force from the humeral head. While the Ruffini-type corpuscles respond to a stretch force. The latter were thought to have a more important role as sensors of a dynamic stabilizing system.

収録刊行物

  • Katakansetsu

    Katakansetsu 16 (1), 96-102, 1992

    Japan Shoulder Society

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