IH = INHIBITORY HORMONE
FEEDBACK REGULATION
 OF PITUITARY HORMONE SECRETION
PITUITARY
HYPOTHALAMUS



TARGET TISSUES

TROPIC HORMONE
BRAIN
PERIPHERAL ENDOCRINE
 GLAND
LONG LOOP
SHORT LOOP
ULTRA
SHORT
L0OP
LONG LOOP
         RH
IH
RH = RELEASING HORMONE
THREE DIFFERENT
 SECRETION
MECHANISMS

*PEPTIDE
*STEROID
*THYROID

HORMONE