Opioid secreted from anterior pituitary?
(A) b endorphin# Pro-opiomelanocortin, a large precursor molecule found in anterior and intermediate lobes of pituitary gland and brain, contains b-endorphin, a polypeptide of 31 AA residues, that has met enkephalin at its amino terminal.> There are separate enkephalin secreting and fi-endorphin secreting systems of neurons in brain.> b-endorphin is also secreted into the bloodstream by pituitary gland.
b endorphin
GH
ACTH
MSH
Nerve Physiology