text: Yo, check it out, here's the scientific scoop,
  Study on male rats, ain't no time to snooze.
  Injecting dopamine, let's see what it do,
  In the paraventricular nucleus and hypophysis too.
  
  But hold up, it didn't affect the TTH,
  Thyrotropic hormone, you know it ain't free.
  Radioimmunoassay got the levels checked,
  No change in secretion, that's what they expect.
  
  Moving on to the mediobasal hypothalamus,
  Dopamine injections, now it's getting serious.
  TTH content in euthyroid rats went down,
  Blood serum levels, that's where it's found.
  
  But wait, if they got thyroxin in their veins,
  Dopamine caused TTH to rise, no games.
  So the conclusion is clear, dopamine's the key,
  Mediobasal hypothalamus involved, can't you see?
  
  It's all about TTH secretion, that's the claim,
  Hypophysis in the mix, they're in the same game.
  Dopamine's got a role when things go astray,
  Normalizing action, keeping TTH at bay.
  
  When the hypophysis-thyroid system goes awry,
  Dopamine steps in, no need to ask why.
  This rap's dropping knowledge, that's what it do,
  Scientific facts, now it's up to you.