13.4 Flashcards
Where is the pancreas located and connected to?
Behind the stomach and is connected to the small intestine
What does the majority of the pancreatic tissue do?
Secretes digestive enzymes into the small intestine
Why is the pancreas considered an exocrine gland?
Because it secrets products through it ducts
What are Islets of Langerhans?
The endocrine cells of the Pancreas
What do the Islet cells of Langerhans secrete?
Insulin and Glucagon
Which cells secrete Insulin?
The beta cells of the pancreas
Which cells secrete Glucagon?
Alpha cells of the pancreas
What does insulin do?
Decreases the level of blood glucose
What does Glucagon do?
Increases the level of blood glucose
What are Insulin and Glucagon regulated by?
Negative feedback
How does insulin work?
It circulates throughout the body and acts on specific receptors to make the target cells more permeable to glucose
How does Glucagon work?
It stimulates the liver to convert glycogen back into glucose which is released into the blood
What is Diabetes Mellitus?
When the body doesn’t produce enough insulin, or doesn’t respond properly to insulin causing high blood sugar
What are the symptoms of Hyperglycemia from diabetes mellitus?
Fatigue
What will the body turn to without glucose from the blood?
Fat and Protein deposits which are less accessible and release ketones
