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您一定知道什么是“肠梗阻”,可是您听说过“肛门梗阻”吗?这要从肛门的生理结构和功能谈起。食物经消化收后形成粪便,到达消化道的最后卡——肛管。肛管的功能是保持排节制及控制排便。排便节制由肛门、外括约肌和盆底肌的静息节律及射活动维持。肛门内括约肌在自主制下,主要?
You must know what is “bowel obstruction,” but have you heard of “anal obstruction”? It depends on the anatomy and function of the anus. After the digestion of food to form the stool, the last card to reach the digestive tract - anal canal. The function of the anal canal is to maintain the bowel movements and defecation. Defecation control by the anal, external sphincter and pelvic floor muscle resting rhythm and firing activities to maintain. Anal sphincter in autonomy, the main?