Several important peptide hormones are secreted from the pituitary gland. The anterior pituitary secretes three hormones: prolactin , which acts on the mammary gland ; adrenocorticotropic hormone (ACTH), which acts on the adrenal cortex to regulate the secretion of glucocorticoids ; and growth hormone , which acts on bone , muscle , and the liver . The posterior pituitary gland secretes antidiuretic hormone , also called vasopressin, and oxytocin . Peptide hormones are produced by many different organs and tissues, including the heart ( atrial-natriuretic peptide (ANP) or atrial natriuretic factor (ANF)) and pancreas ( glucagon , insulin and somatostatin ), the gastrointestinal tract ( cholecystokinin , gastrin ), and adipose tissue stores ( leptin ).  
The straightforward chronological march from project to project (skimming past some lesser ones) in “King Cohen” will appeal to buffs looking for trivia. But it doesn’t lend Mitchell’s feature much personality of its own, let alone room to explore particular themes within the subject’s work and career. Talking heads, film clips, behind-scenes footage and errata are assembled competently if without much imagination. The most notable packaging addition, Joe Kraemer’s original score, has a retro disco-synth tilt that hits a more rotely camp-nostalgic note than Cohen’s filmography deserves.