Pancreas

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Pancreas

Accessory digestive organ
Has endocrine function and exocrine functions
Makes insulin, glucagon and digestive enzymes

Endocrine Function

Pancreatic islets make and secrete:

Glucagon from alpha cells
Insulin from beta cells
Both are hormones and act in the endocrine system

Exocrine Function

Secretory acini secrete:

Trypsinogen(precursor to trypsin which breaks down protein)
Amylase: breaks down sugars
Lipase: breaks down lipids

Ductal cells secrete:

Sodium bicarbonate(NaHCO3)

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Pancreatic Ducts

Empties into duodenum via duodenal papilla
Major duodenal papilla: opening of pancreatic duct
Minor duodenal papilla: opening of the accessory pancreatic duct
Main pancreatic duct: duct of Wirsung
Accessory pancreatic duct: duct of Santorini
Ampulla of Vater: opening formed by union of bile duct and pancreatic duct
Sphincter of Oddi: junction at the bile duct, pancreatic duct and duodenum

What is amylase?

An enzyme that breaks down sugars

What are produced during endocrine functions?

Glucagon and insulin

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