( ( Whatever ( ( the head ) ( ( ( sends down ) ( the ( signal path ) ) ) ( to ( the body ) ) ) ) ) ( , ( ( the body ) ( ( is ( going ( to respond ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHNP (WDT Whatever)) (S (NP (DT the) (NN head)) (VP (VBZ sends) (PRT (RP down)) (NP (DT the) (NN signal) (NN path)) (PP (TO to) (NP (DT the) (NN body)))))) (, ,) (NP (DT the) (NN body)) (VP (VBZ is) (VP (VBG going) (S (VP (TO to) (VP (VB respond)))))) (. .)))
Whatever the head sends down the signal path to the body, the body is going to respond.
(ROOT (S (NP (NNS Hormones)) (VP (VBP send) (NP (NNS signals)) (PP (IN through) (NP (PRP$ your) (NN body)))) (. .)))