diabetes

Question 1

describe the homeostasis of hyperglycaemia

Answer 1

when food is eater the blood glucose levels rise. This rise is detected by the beta cells in the pancreas. These secrete insulin as a result which has an action on liver (stores glucose as glycogen), muscle, adipocytes and CNS
No glycogen storage in the brain - relies on blood glucose for supply

Question 2

describe the homeostasis of hypoglycaemia

Answer 2

fasting/overnight fast
fall in blood glucose
glucagon release from pancreatic alpha cells
endodgenous glucose production i.e. glycogenolysis and gluconeogenesis

Question 3

describe insulin

Answer 3

• Protein Hormone

Derived from proinsulin

Question 4

name the cell types of the pancreas

Answer 4

• Alpha cells - glucagon
beta cells - insulin
	• Delta cell - somatostatin
Epsilon - ghrelin
PP cells produce pancreatic polypeptide cells