单词：pyloric sphincter
pyloric sphincter的用法和样例：
例句
- Foreign bodies most commonly become lodged in the stomach because of the inability to pass through the pyloric sphincter, and in the jejunum.体内异物通常存积于胃部，因为异物难以通过幽门括约肌进入空肠。
单词：pyloric sphincter 相关文章
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