( However ( , ( ( ( NO produced ) ( in ( the body ) ) ) ( ( helps ( regulate ( ( ( cell ( ( function and ) communication ) ) , ) ( particularly ( in ( the ( cardiovascular system ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB However)) (, ,) (NP (NP (DT NO) (NN produced)) (PP (IN in) (NP (DT the) (NN body)))) (VP (VBZ helps) (VP (VB regulate) (NP (NP (NN cell) (NN function) (CC and) (NN communication)) (, ,) (RRC (ADVP (RB particularly)) (PP (IN in) (NP (DT the) (JJ cardiovascular) (NN system))))))) (. .)))
However, NO produced in the body helps regulate cell function and communication, particularly in the cardiovascular system.
(ROOT (S (NP (NP (CD One) (NN function)) (PP (IN of) (NP (DT the) (JJ cardiovascular) (NN system)))) (VP (VBZ is) (S (VP (TO to) (VP (VB transport) (NP (NNS gases)) (PP (IN throughout) (NP (DT the) (NN body))))))) (. .)))
One function of the cardiovascular system is to transport gases throughout the body.