It may not be as big as its master
But functions importantly,
Useful as it seems
And can be dangerous at times
IT is small and fragile,
Located at this body's head.
IT is famous indeed,
'Cause IT is needed
IT secrete hormones,
each with different function
But what are these?
How can IT be useful?
When body's stressed,
guess what IT releases?
ahhh..IT's ATCH
This body seem to grow well,
Who's in charge?
Oh, I see it's GH
This may not be as important as others,
but useful reproducing,
You got it, it's LSH and FSH
This body seem to be alive
Body's warm, temperature regulated
Oh yeah, meet TSH
Skin as white as snow,
what a lovely appearance
It seems MSH is in charge
Now the body knows IT all,
an applause for A.P.G!
It's Anterior Pituitary gland
Hooray! :)