( ( To ( ( transmit ( nerve impulses ) ) ( to ( its neighbor ) ) ) ) ( , ( ( a neuron ) ( ( releases ( ( chemical messengers ) ( known ( as ( neurotransmitters ( -LRB- ( ( ( shown here ) ( as ( orange bars ) ) ) -RRB- ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (TO To) (VP (VB transmit) (NP (NN nerve) (NNS impulses)) (PP (TO to) (NP (PRP$ its) (NN neighbor)))))) (, ,) (NP (DT a) (NN neuron)) (VP (VBZ releases) (NP (NP (NN chemical) (NNS messengers)) (VP (VBN known) (PP (IN as) (NP (NP (NNS neurotransmitters)) (PRN (-LRB- -LRB-) (VP (VBN shown) (ADVP (RB here)) (PP (IN as) (NP (JJ orange) (NNS bars)))) (-RRB- -RRB-))))))) (. .)))
To transmit nerve impulses to its neighbor, a neuron releases chemical messengers known as neurotransmitters (shown here as orange bars).
(ROOT (S (PP (IN Like) (S (NP (DT a) (NN runner)) (VP (VBG passing) (NP (DT a) (NN baton))))) (, ,) (NP (NP (DT the) (NN transmission)) (PP (IN of) (NP (NP (NN nerve) (NNS impulses)) (PP (IN between) (NP (NNS neurons)))))) (VP (VBZ depends) (PP (IN on) (NP (NNS neurotransmitters)))) (. .)))