Lumen
Lumen comes from Latin word "lumin" what means window. Term "lumen" is used to describe an internal space which is surrounded by a layer of tissue or membrane and resembles a tube in a structure [1].
Lumen can be found in:
- intestine
- Intestine blood vessels
Reference
- ↑ Silverthorn, D. U. (1998) Human physiology: an integrated approach. Upper Saddle River, New Jersey: Prentice Hall. Page 2,44.