The autonomic nervous system innervates smooth muscles and glands, and is divided into the sympathetic and parasympathetic branches.
植物神经系统分为交感神经和副交感神经，它可以支配平滑肌和身体中的各类腺体。
The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.
家禽的心脏传导系统比较特殊，它含有一个返回分支束，使右房室瓣受传导神经的支配。
The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.
家禽的心脏传导系统比较特殊，它含有一个返回分支束，使右房室瓣受传导神经的支配。
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