( Airway ( ( Obstructions ( ( ( The ( ( most common ) cause ) ) ( of ( airway obstruction ) ) ) ( is ( ( a ( relaxed tongue ) ) ( that ( falls ( over ( ( the back ) ( of ( ( the throat ) ( obstructing ( the ( ( pharynx and ) larynx ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Airway)) (VP (VBZ Obstructions) (SBAR (S (NP (NP (DT The) (ADJP (RBS most) (JJ common)) (NN cause)) (PP (IN of) (NP (JJ airway) (NN obstruction)))) (VP (VBZ is) (NP (NP (DT a) (JJ relaxed) (NN tongue)) (SBAR (WHNP (WDT that)) (S (VP (VBZ falls) (PP (IN over) (NP (NP (DT the) (NN back)) (PP (IN of) (NP (NP (DT the) (NN throat)) (VP (VBG obstructing) (NP (DT the) (NN pharynx) (CC and) (NN larynx))))))))))))))) (. .)))
Airway Obstructions The most common cause of airway obstruction is a relaxed tongue that falls over the back of the throat obstructing the pharynx and larynx.
(ROOT (S (NP (NN Digestion) (CC and) (NN respiration)) (VP (VP (VBP are) (DT both) (ADJP (JJ facilitated) (PP (IN by) (NP (DT the) (NN pharynx))))) (, ,) (ADVP (RBR more) (RB commonly)) (VP (VBD called) (NP (DT the) (NN throat)))) (. .)))