( This ( ( is ( ( the ( ( -LRB- ( intrinsic -RRB- ) ) ( abductor muscle ) ) ) ( of ( the larynx ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (NP (DT the) (PRN (-LRB- -LRB-) (ADJP (JJ intrinsic)) (-RRB- -RRB-)) (NN abductor) (NN muscle)) (PP (IN of) (NP (DT the) (NN larynx))))) (. .)))
This is the (intrinsic) abductor muscle of the larynx.
(ROOT (S (NP (JJ Intrinsic) (NNS muscles)) (VP (VBP allow) (NP (PRP$ your) (NNS fingers)) (S (VP (TO to) (VP (ADVP (RB also)) (VB make) (NP (NP (JJ precise) (NNS movements)) (PP (IN for) (NP (NNS actions)))))))) (. .)))