为什么“响屁不臭，臭屁不响”？
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屁是消化系统的产物
来源主要是吃东西时混进去的空气和肠道内菌群消化食物时释放的气体。
肠道产气增多刺激肠道蠕动，推动至肛门括约肌，经过一定积累后释放的就是屁。
来源主要是吃东西时混进去的空气和肠道内菌群消化食物时释放的气体。
肠道产气增多刺激肠道蠕动，推动至肛门括约肌，经过一定积累后释放的就是屁。
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