HORMONES PRODUCED BY OTHER ORGANS & TISSUES THAT CONTAIN ENDOCRINE CELLS & THEIR PRINCIPAL ACTIONS
GASTROINTESTINAL TRACT
Gastrin
Promotes secretion of gastric juice; increases movements of the stomach.
Glucose-dependent insulinotropic peptide (GIP)
Stimulates release of insulin by pancreatic beta cells.
Secretin
Stimulates secretion of pancreatic juice and bile.
Cholecystokinin (CCK)
Stimulates secretion of pancreatic juice; regulates release of bile from gall bladder; causes feeling of fullness after eating.
PLACENTA
Human chorionic gonadotropin (hCG)
Stimulates corpus luteum in ovary to continue production of oestrogens and progesterone to maintain pregnancy.
Oestrogens and progesterone
Maintain pregnancy; help prepare mammary glands to secrete milk.
Human chorionic somatomammotropin (hCS)
Stimulates development of mammary glands for lactation.
KIDNEYS
Renin
Part of reaction sequence that raises blood pressure by bringing about vasoconstriction and secretion of aldosterone.
Erythropoietin (EPO)
Increases rate of red blood cell formation.
Calcitriol (active form of vitamin D)
Aids in absorption of dietary calcium and phosphorus.
HEART
Atrial natriuretic peptide (ANP)
Decreases blood pressure.
ADIPOSE TISSUE
Leptin
Suppresses appetite; may increase FSH and LH activity.
