pancreas Flashcards
what is the pancreas
flattened organ posterior and inferior to stomach
in the pancreas there are two types of cells
alpha cells
beta cells
what does the alpha cell make
glucagon > blood glucose
what does the beta cell do
insulin < blood glucose
if body has low blood glucose what happens
stimulates glucagon release
-glucagon stimulates liver glucose release ->increased blood glucose level
if the body has high glucose level what happens
stimulates insulin release in body
if insulin increases glucose transport where does it go
into skeletal muscle
adipose cells
if the body releases insulin what does this mean/do?
decreases blood glucose levels
what does insulin promote?
amino acid uptake
protein synthesis
lipid storage
what can also regulate hormone release?
autonomic nervous system
what happens if the body is low on blood glucose?
name the 6 steps
stimulates alpha cells to secrete
glucagon acts on liver cells
breaks down glycogen into glucose
form glucose from lactic acid and certain amino
acids
glucose released by liver cells raises blood
glucose levels to normal
if the blood continues to rise, hyperglycaemia
inhibits the release of glucagon
what happens if the body is high on glucose?
name the 7 steps
stimulates beta cells to secrete
insulin acts on various body cells to:
promote facilitated diffusion of glucose
speed synthesis of glycogen from glucose
increase uptake of amino acids and increase
protein synthesis
blood glucose levels fall
if blood glucose continues to fall, hypoglycaemia
inhibits the release of insulin
