1) Growth hormone 
Trophic hormone is a hormone that has a growth effect, hyperplasia or hypertrophy, on the tissue it is stimulating. The term trophic is from Ancient Greek τροφικός (trophikós) meaning `pertaining to food or nourishment`, here used to mean `growth`; this is the same origin as atrophy. This should not be confused with tro`p`ic, as in ...