( Blood ( ( ( ( ( ( enters ( ( the ( right ( atrium ( or ( upper chamber ) ) ) ) ) ( of ( the heart ) ) ) ) , ) ( goes ( into ( the ( right ventricle ) ) ) ) ) and ) ( is ( ( ( pumped out ) ( of ( the heart ) ) ) ( into ( the ( pulmonary artery ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Blood)) (VP (VP (VBZ enters) (NP (NP (DT the) (JJ right) (NN atrium) (CC or) (JJ upper) (NN chamber)) (PP (IN of) (NP (DT the) (NN heart))))) (, ,) (VP (VBZ goes) (PP (IN into) (NP (DT the) (JJ right) (NN ventricle)))) (CC and) (VP (VBZ is) (VP (VBN pumped) (PRT (RP out)) (PP (IN of) (NP (DT the) (NN heart))) (PP (IN into) (NP (DT the) (JJ pulmonary) (NN artery)))))) (. .)))
Blood enters the right atrium or upper chamber of the heart, goes into the right ventricle and is pumped out of the heart into the pulmonary artery.
(ROOT (S (NP (NP (DT The) (JJ right) (NN atrium)) (PP (IN of) (NP (DT the) (NN heart)))) (VP (VBZ receives) (SBAR (S (NP (DT the) (NN blood)) (VP (VBZ is) (VP (VBN pumped) (PP (IN from) (NP (NP (NNS veins)) (PP (IN of) (NP (DT the) (JJ systemic) (NN circuit)))))))))) (. .)))