Lumen (anatomy)

（重定向自Intraluminal）

Cross section of the gut. The lumen is the space in the middle.

In biology, a lumen (fromLatin lūmen, meaning "an opening"; plural lumina) is the inside space of a tubular structure, such as an artery or intestine. By extension, the term lumen is also used to describe the inside space of a cellular component or structure, such as the endoplasmic reticulum.

单词	Intraluminal
释义	Intraluminal 英语百科 Lumen (anatomy) （重定向自Intraluminal） In biology, a lumen (fromLatin lūmen, meaning "an opening"; plural lumina) is the inside space of a tubular structure, such as an artery or intestine. By extension, the term lumen is also used to describe the inside space of a cellular component or structure, such as the endoplasmic reticulum.
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