Pancreas Flashcards
Where is the pancreas located
Near the start of the small intestine, the duodenum
Why is the pancreas a mixed gland?
Contains a mixture of exocrine and endocrine glandular tissue
The exocrine portion of the pancreas contains what cells
Secretory cells called acini
The exocrine portion of the pancreas secretes what into where
Pancreatic juice into a duct that leads into the small intestine
Pancreatic juice contains an alkaline bicarbonate rick mixture of enzymes for what
For digestion of proteins, sugars, lipids and nicelic acids
The alkalinity of the pancreatic juice also does what
Neutralises the acidic chime entering the duodenum from the stomach
What is the endocrine portion of the pancreas referred to as
Pancreatic islets, islets of Langerhans
The endocrine portion of the pancreas secretes where
Hormones directly into the bloodstream
The islets contain 3 major types of hormone producing cells, name em
Alpha, beta and delta
What does the alpha islet cells secrete
Glucagon
What does the beta islet cells secrete
Insulin
What does the delta islet cells secrete
Somatostatin
What is the primary effect of glucagon
Increase blood glucose levels by stimulating glucose release from liver
Where is glucose stored and how
Stored in liver as a complex carbohydrate known as glycogen
What is the primary effect of insulin
Decrease glucose
