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Pancreas...

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Pancreas...

Postby VeenaandNivyah » Mon Mar 13, 2006 12:34 pm

Hi
I've a doubt... is the pancreas an exocrine organ or an endocrine. I mean, it digests all 3 classes of food and also secretes insulin, so which does it belong to?
Thanx in advance. :D
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Postby victor » Mon Mar 13, 2006 2:15 pm

I think, if you mean like that, it can be both...other example is like ventriculus which excretes its HCl-ed-mucus (exocrine) and secretes Gastrine (endocrine).
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Postby MrMistery » Mon Mar 13, 2006 7:12 pm

The pancreas, along with the gonads(tests and ovaries) are named dual glands, because they have both an exocrine and and endocrine function.
The endocrine function of the pancreas constituts only 1-2% of it's mass, and it is grouped into ~1 milion small spherical secreting bodies called the Langerhans Isles. Despite this fact, the pancreas secrets several important hormones:
A cells - glucagon
B cells - insulin
D cells - somatostatine
F cells - the pancreatic polipeptide(i have no idea what it does..)
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Re: Pancreas...

Postby cardiorrhexis » Tue Mar 14, 2006 1:18 am

VeenaandNivyah wrote:Hi
I mean, it digests all 3 classes of food and also secretes insulin, so which does it belong to?



I teach the pancreas in both the digestive system and the endocrine system because it's a dual purpose organ....
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Postby Poison » Tue Mar 14, 2006 5:34 pm

MrMistery wrote:A cells - glucagon
B cells - insulin
D cells - somatostatine
F cells - the pancreatic polipeptide


We learned F cells as PP. They are the same I guess.
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Postby MrMistery » Tue Mar 14, 2006 7:38 pm

they are called F and produce the PP. :D
By the way, does anyone know what the pancreatic polipeptide actually does? Cause my books say it is there, but no function
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Postby Poison » Tue Mar 14, 2006 8:12 pm

I know they produce PP but they said that they are called PP cells. Whatever. :)

About the function of pancreatic polypeptide, it is still unknown.
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