( ( Explain ( how ( ( ( arterio-venous ( 02-difference ( and ( oxygen extraction ) ) ) ) ( in ( the heart ) ) ) ( ( is unique ) ( when ( compared ( to ( other ( body organs ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Explain) (SBAR (WHADVP (WRB how)) (S (NP (NP (JJ arterio-venous) (NN 02-difference) (CC and) (NN oxygen) (NN extraction)) (PP (IN in) (NP (DT the) (NN heart)))) (VP (VBZ is) (ADJP (JJ unique)) (SBAR (WHADVP (WRB when)) (S (VP (VBN compared) (PP (TO to) (NP (JJ other) (NN body) (NNS organs)))))))))) (. .)))
Explain how arterio-venous 02-difference and oxygen extraction in the heart is unique when compared to other body organs.
(ROOT (S (PP (IN In) (NP (PRP$ your) (NN body))) (, ,) (NP (NP (DT the) (NN heart)) (CC and) (NP (NNS lungs))) (VP (VBP work) (ADVP (RB together)) (S (VP (TO to) (VP (VB make) (ADJP (JJ sure)) (SBAR (IN that) (S (NP (NN oxygen)) (VP (VBZ gets) (PP (TO to) (NP (NP (PDT all) (DT the) (JJ other) (NNS organs)) (PP (IN of) (NP (PRP$ your) (NN body)))))))))))) (. .)))
In your body, the heart and lungs work together to make sure that oxygen gets to all the other organs of your body.