M receptor antagonist atropine could block the stimulatory effects on gastric motility by G5 completely and CCK8 partly.

受体阻断剂阿托品能完全阻断G 5对胃窦收缩运动的兴奋作用，部分阻断CCK8对胃窦收缩运动的兴奋作用。

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Conclusion: Administration of Penehyclidine Hydrochloride which is selective antagonist on receptor-M as Premedication is more effective and better than Atropine in abdominal surgery.

结论：选择性新型M -受体拮抗剂长托宁用于腹部外科手术术前用药临床效果优于阿托品。

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