( ( These turbinates ) ( ( increase ( ( the ( effective surface ) ) ( are ( of ( ( the lining ) ( of ( ( ( the nose ) , ) ( which ( ( helps ( ( the nasal ) ( cavity ( ( ( ( warm ( , ( humidfy , ) ) ) and ) clean ) ( the air ) ) ) ) ) ( as ( it ( ( passes ( through ( the nose ) ) ) ( into ( the lungs ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS turbinates)) (VP (VBP increase) (SBAR (S (NP (DT the) (JJ effective) (NN surface)) (VP (VBP are) (PP (IN of) (NP (NP (DT the) (NN lining)) (PP (IN of) (NP (NP (DT the) (NN nose)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ helps) (S (NP (DT the) (NN nasal)) (VP (ADVP (RB cavity)) (VB warm) (PRN (, ,) (ADVP (RB humidfy)) (, ,)) (CC and) (VB clean) (NP (DT the) (NN air)))) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ passes) (PP (IN through) (NP (DT the) (NN nose))) (PP (IN into) (NP (DT the) (NNS lungs))))))))))))))))) (. .)))
These turbinates increase the effective surface are of the lining of the nose, which helps the nasal cavity warm, humidfy, and clean the air as it passes through the nose into the lungs.
(ROOT (S (PP (IN In) (NP (NNS mammals))) (, ,) (NP (NN air)) (VP (VBZ is) (VP (VBN warmed) (CC and) (VBN humidified) (PP (IN in) (NP (DT the) (JJ nasal) (NN cavity))))) (. .)))