Endocrine Pancreas Flashcards
1
Q
How are the cells of the Islets of Langerhans arranged?
A
arranged as rounded clusters of cells within exocrine pancreas
2
Q
How many islets of langerhans are there?
A
one million per pancreas
3
Q
How big is each islet?
A
100-200mm with approx several hundred cells
4
Q
What are the four cell types of the islets of langerhans?
A
alpha, beta, delta and F cells
5
Q
How do alpha cells look and what do they secrete?
A
have regular granules with a dense core surrounded by a clear region – secrete glucagon
6
Q
How do beta cells look and what do the secrete?
A
irregular granules with a core formed by irregular crystals – secrete insulin
7
Q
What do delta cells secrete? what does it do?
A
somatostatin –inhibits other cells
8
Q
What do F cells secrete?
A
pancreatic polypeptide
