Endocrine System - Pancreas Flashcards
(10 cards)
Peptide hormones
Water-soluble at cell surface
Second messengers
Steroid hormones
Lipid-soluble at intracellular levels
Gene transcription
Amine hormones
depends
negative feedback
resists change to maintain homeostasis
insulin
pancreas (b) - most body cells
increased glucose uptake
glucagon
pancreas (a) - liver
decreased glucose uptake
high blood glucose negative feedback
pancreas (b cells) release insulin
glucose uptake increased so blood glucose levels decreased
low blood glucose negative feedback
pancreas (a cells) release glucagon
glucose uptake decreased so blood glucose levels increased
type 1 diabetes: cause, problem & treatment
hyposecretion of insulin/autoimmune destruction of beta cells in pancreas
no insulin is produced
needs insulin injections
type 2 diabetes: cause, problem & treatment
insulin resistance
cells don’t respond to insulin
diet, exercise, medications