Comparison between visceral motor nerve somatic motor nerve 躯体运动神经 内脏运动神经 支配器官 骨骼肌 心肌、腺体、平滑肌 意识控制 受 不受（一定程度上） 纤维成分 仅一种 交感和副交感两种 神经元数 一个 两个 节前纤维（细而薄髓) 纤维类型 粗而有髓纤维 节后纤维（细而无髓)》 分布形式 神经干 神经丛
躯体运动神经 内脏运动神经 支配器官 骨骼肌 心肌、腺体、平滑肌 意识控制 受 不受（一定程度上） 纤维成分 仅一种 交感和副交感两种 神经元数 一个 两个 纤维类型 粗而有髓纤维 节前纤维（细而薄髓） 节后纤维（细而无髓） 分布形式 神经干 神经丛 Comparison between visceral motor nerve somatic motor nerve
Main differences between somatic motor and visceral motor nerve Somatic Visceral Effectors Skeletal muscles Cardiac muscle,smooth muscles and glands Control Voluntary Involuntary (unconsciousness (consciousness) From lower Single neuron Two grade neurons: center to effect- Preganglionic neuron or require Postganglionic neuron Kind of fibers One Two:sympathetic parasympathetic Fibers Thick myelinated Preganglionic:thin myelinated postganglionic:unmyelinated Distributive form Nerve trunk Nerve plexuses
Main differences between somatic motor and visceral motor nerve Somatic Visceral Effectors Skeletal muscles Cardiac muscle, smooth muscles and glands Control Voluntary (consciousness) Involuntary (unconsciousness ) From lower center to effector require Single neuron Two grade neurons: Preganglionic neuron Postganglionic neuron Kind of fibers One Two: sympathetic & parasympathetic Fibers Thick myelinated Preganglionic: thin myelinated postganglionic: unmyelinated Distributive form Nerve trunk Nerve plexuses
神经递质Neurotransmitters Somatic nervous system躯体运动系统 <ACh Striated muscle 横纹肌 Autonomic nervous system自主神经系统 Sympathetic交感神经 Cardiac m.心肌 <ACh <NE Smooth m.平滑肌 Glands腺体K <ACh <ACh Sweat汗腺 glands ACh E, E→ Parasympathetic Cardiac m.心肌 <ACh <ACh Smooth m.平滑肌 Glands腺体 Ach-acetylcholine; E-epinephrin; NE-norepinephrine 乙酰胆碱 肾上腺素 去甲肾上腺素
神经递质 Neurotransmitters ACh ACh Sweat 汗腺 glands Striated muscle 横纹肌 ACh Somatic nervous system 躯体运动系统 ACh ACh Parasympathetic ACh E, NE → → Cardiac m.心肌 Smooth m.平滑肌 Glands 腺体 ACh NE Autonomic nervous system 自主神经系统 Sympathetic 交感神经 Cardiac m.心肌 Smooth m.平滑肌 Glands 腺体 Ach- acetylcholine; 乙酰胆碱 E-epinephrin; 肾上腺素 NE-norepinephrine 去甲肾上腺素
神经递质Neurotransmitters Preganglionic Adrenergic receptor From NE CNS Nicotinic Nicotinic ACh aepn8noc cholinergic receptors Epinephrine Preganglionic neuron(cholinergic) Effector organs (with adrenergic ACh Adrenal receptors) gland Postganglionic From Preganglionic neuron(cholinergic) neuron(adrenergic) CNS NE ACh Nicotinic cholinergic receptor (a)Sympathetic nervous system Learn it by yourself Muscarinic cholinergic Postganglionic receptor neuron From Preganglionic neuron(cholinergic) (cholinergic) CNS ACh Effector organ (with cholinergic receptor) ACh Nicotinic cholinergic receptor (b)Parasympathetic nervous system
神经递质 Neurotransmitters Learn it by yourself
Visceral motor (efferent)nerves (Autonomic nervous system 自主神经系统) ◆Sympathetic part交感神经 ◆Parasympathetic part副交感神经 11
11 Visceral motor (efferent) nerves ◆ Sympathetic part 交感神经 ◆ Parasympathetic part 副交感神经 (Autonomic nervous system 自主神经系统)