( ( ( The blood ) ( that ( is ( returned ( to ( the ( right atrium ) ) ) ) ) ) ) ( ( is ( ( ( deoxygenated ( -LRB- ( ( poor ( in oxygen ) ) -RRB- ) ) ) and ) ( ( passed ( into ( the ( right ventricle ) ) ) ) ( to ( be ( ( pumped ( through ( the ( pulmonary artery ) ) ) ) ( to ( ( the lungs ) ( for ( ( ( re-oxygenation and ) removal ) ( of ( carbon dioxide ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN blood)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN returned) (PP (TO to) (NP (DT the) (JJ right) (NN atrium)))))))) (VP (VBZ is) (VP (VP (VBN deoxygenated) (PRN (-LRB- -LRB-) (ADJP (JJ poor) (PP (IN in) (NP (NN oxygen)))) (-RRB- -RRB-))) (CC and) (VP (VBN passed) (PP (IN into) (NP (DT the) (JJ right) (NN ventricle))) (S (VP (TO to) (VP (VB be) (VP (VBN pumped) (PP (IN through) (NP (DT the) (JJ pulmonary) (NN artery))) (PP (TO to) (NP (NP (DT the) (NNS lungs)) (PP (IN for) (NP (NP (NN re-oxygenation) (CC and) (NN removal)) (PP (IN of) (NP (NN carbon) (NN dioxide)))))))))))))) (. .)))
The blood that is returned to the right atrium is deoxygenated (poor in oxygen) and passed into the right ventricle to be pumped through the pulmonary artery to the lungs for re-oxygenation and removal of carbon dioxide.
(ROOT (S (NP (DT The) (JJ right) (NN atrium)) (VP (VBZ receives) (NP (JJ oxygen-poor) (NN blood)) (PP (IN from) (NP (DT the) (NN body))) (, ,) (S (ADVP (RB then)) (VP (VBG pumps) (NP (DT the) (NN blood)) (PP (IN into) (NP (DT the) (JJ right) (NN ventricle)))))) (. .)))