( Hormones ( ( ( act ( on ( parts ( of ( the body ) ) ) ) ) ( by ( ( sending ( chemical signals ) ) ( through ( receptors ( ( ( on or ) inside ) cells ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Hormones)) (VP (VBP act) (PP (IN on) (NP (NP (NNS parts)) (PP (IN of) (NP (DT the) (NN body))))) (PP (IN by) (S (VP (VBG sending) (NP (NN chemical) (NNS signals)) (PP (IN through) (NP (NP (NNS receptors)) (PP (IN on) (CC or) (IN inside) (NP (NNS cells))))))))) (. .)))
Hormones act on parts of the body by sending chemical signals through receptors on or inside cells.
(ROOT (S (NP (NNS Hormones)) (VP (VBP send) (NP (NNS signals)) (PP (IN through) (NP (PRP$ your) (NN body)))) (. .)))