An organ that secretes substances that neutralize stomach acids and break down proteins, fats, and carbohydrates
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long, somewhat flat organ that lies just behind and beneath the stomach
specialized cells called the islets of Langerhans
two types include alpha and beta cells
connected to the hepatic duct via the pancreatic duct at the duodenum
secrets several substances into the duodenum through the pancreatic duct and directly into the bloodstream through capillaries of the islets of Langerhans.
Sodium bicarbonate acts to neutralize stomach acid
pancreatic enzymes
trypsin: breaks down proteins
lipase: breaks down fats
amylase: breaks down carbohydrates
cells of islets of Langerhans also secrete hormones insulin and glucagon, which work together to regulate blood glucose levels after we eat
insulin is created by beta cells in response to rising blood glucose levels after we eat, binds to glucose molecules in the blood which then allows them to diffuse into the tissues and enter cells to provide energy
Glucagon is secreted by alpha cells in response to dropping blood glucose levels
stimulates the liver to release a storage form of glucose called glycogen.
liver then convers the glycogen into glucose for energy