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( 四)神经与靶组织的相互营养作用 1 、神经的营养性作用 2 、支持神经的营养性因子 (neurotrophin,NT)

( 四)神经与靶组织的相互营养作用 1 、神经的营养性作用 2 、支持神经的营养性因子 (neurotrophin,NT) 神经生长因子( nerve growth factor , NGF )的主要生物效应: ( 1 )交感神经元和感觉神经元正常发育和 分化所必需 ( 2 )对轴突生长方向有决定性诱导作用 ( 3 )维持神经元的存活. ——————————————————— 肌梭传入冲动 腱器官传入冲动 ——————————————————— 等长收缩 不变 ↑ 等张收缩 ↓ 不变

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( 四)神经与靶组织的相互营养作用 1 、神经的营养性作用 2 、支持神经的营养性因子 (neurotrophin,NT)

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  1. (四)神经与靶组织的相互营养作用 1、神经的营养性作用 2、支持神经的营养性因子 (neurotrophin,NT) 神经生长因子(nerve growth factor,NGF)的主要生物效应: (1)交感神经元和感觉神经元正常发育和 分化所必需 (2)对轴突生长方向有决定性诱导作用 (3)维持神经元的存活

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