( ( Physiological ( mechanisms ( Hormone release ) ) ) ( ( is ( regulated ( by ( ( a ( complex system ) ) ( ( in which ) ( ( part ( of ( ( ( ( ( ( ( the brain ) ( -LRB- ( hypothalamus -RRB- ) ) ) , ) ( pituitary body ) ) , ) and ) ( the sex ) ) ) ) ( glands ( -LRB- ( gonads ( -RRB- ( play ( a role ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Physiological) (NNP mechanisms) (NNP Hormone) (NN release)) (VP (VBZ is) (VP (VBN regulated) (PP (IN by) (NP (NP (DT a) (JJ complex) (NN system)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NP (NN part)) (PP (IN of) (NP (NP (DT the) (NN brain)) (PRN (-LRB- -LRB-) (NP (NNS hypothalamus)) (-RRB- -RRB-)) (, ,) (NP (JJ pituitary) (NN body)) (, ,) (CC and) (NP (DT the) (NN sex))))) (VP (VBZ glands) (S (-LRB- -LRB-) (NP (NNS gonads)) (-RRB- -RRB-) (VP (VB play) (NP (DT a) (NN role))))))))))) (. .)))
Physiological mechanisms Hormone release is regulated by a complex system in which part of the brain ( hypothalamus ), pituitary body, and the sex glands ( gonads ) play a role.
(ROOT (NP (NP (DT The) (NNS hypothalamus)) (: --) (S (NP (JJ pituitary) (NN complex)) (VP (VBZ is) (VP (VBN located) (PP (IN in) (NP (NP (DT the) (NN body)) (PP (IN in) (NP (NP (DT the) (NN diencephalon)) (PP (IN of) (NP (DT the) (NN brain)))))))))) (. .)))