Distribution and morphology of 5-Hydroxytryptamine immunoreactive(5-HTIR) cells in the digestive tract of Pachytriton labiatum were investigated by immunohistochemical method.

• 用S-P免疫组织化学的方法对无斑肥螈消化道五-羟色胺(5-HTIR)免疫活性细胞的分布及形态进行了观察。