anal canal

• 肛管,肛门管

anal canal的用法和样例：

例句

1. The terminal hindgut forms the upper portion of the anal canal.
   末端后肠形成肛管的上部。
2. Peristalsis in the large intestine pushes waste toward the anal canal and is important in removing gas and dislodging potential bacterial colonies.
   大肠内的蠕动将粪便推入肛管，在排出结肠内的气体及抑制细菌生长方面发挥十分重要的作用。