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Patent - "open"
Lument - "central cavity of a tube"
Example: The pyloris sphincter
The pyloris, a spincter in the gut that controls the flow between a reservoir dedicated to mechanical and chemical digestion (the stomach) and a conduit dedicated to the absorption of nutrients (the intestines). The pylorus adjusts gastric outflow resistance to physiological needs. It allows the outflow of isotonic fluids yet selectively retains particles too large for delivery to the intestines and in concert with the antrum further processes them (gastric sieving). Unlike most gut sphincters, the pylorus, at least of man, maintains a patent lumen most of the time. It only intermittently becomes a tightly closed barrier that arrests all flow out of and into the stomach.
What else can I help you with?
How do you spell lumen?
Lumen
Double lumen PICC line colors and what they mean?
Double-lumen PICC lines come in two colors. Red is the blood access lumen or arterial lumen and blue is the blood return lumen or venous lumen. Despite the names, neither lumen is leads to an artery, but both lead into a vein.
What is the root word for lumen?
The root word for lumen is the Latin word "lumen," which means light.
How do you use the word lumen in a sentence?
the lumen is bright
When was Lumen Eclipse created?
Lumen Eclipse was created in 2005.
When was Lumen Pierce created?
Lumen Pierce was created in 2010.
When was Lumen - band - created?
Lumen - band - was created in 1998.
When was Lumen Gentium created?
Lumen Gentium was created in 1964.
What is the arterial lumen?
The arterial lumen is the opening of the artery. As an analogy, the toilet paper roll lumen is what you put the spindle through.
How many milliwatts per lumen?
There are 1000 milliwatts per lumen.
What is the internal space of a blood vessel called?
called lumen
What is the open space inside a structure such as the small intestine?
Lumen
