16.4 - Regulation of Blood Glucose Concentration Flashcards
The role of the pancreas as an endocrine gland The regulation of blood glucose levels by insulin and glucagon
What is the role of the pancreas as an endocrine gland?
Regulate blood glucose levels
What are islets of Langerhans?
Cell clusters in pancreas secreting hormones
What cells do islets of Langerhans contain?
Beta (β) and alpha (α) cells
What hormone do beta cells secrete?
Insulin
What hormone do alpha cells secrete?
Glucagon
Why is blood glucose regulation vital?
Glucose for respiration
How does insulin control blood glucose?
Inhibits α cells
How does glucagon control blood glucose?
Inhibits β cells
What is glycogenesis?
Glucose converted to glycogen
What is glycogenolysis?
Glycogen converted to glucose
What is gluconeogenesis?
Glucose produced from amino acids and fats
What is the role of adrenaline in blood glucose regulation?
Works with glucagon to increase levels
