( Together ( , ( ( the ( ( tendons and ) muscles ) ) ( ( ( ( allow ( you ( to ( ( ( bend and ) extend ) ( your ( ( fingers and ) thumb ) ) ) ) ) ) , ) ( ( ( ( for example ) , ) as ) ( in ( making ( a fist ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Together)) (, ,) (NP (DT the) (NNS tendons) (CC and) (NNS muscles)) (VP (VBP allow) (S (NP (PRP you)) (VP (TO to) (VP (VB bend) (CC and) (VB extend) (NP (PRP$ your) (NNS fingers) (CC and) (NN thumb))))) (, ,) (PP (PP (IN for) (NP (NN example))) (, ,) (RB as) (PP (IN in) (S (VP (VBG making) (NP (DT a) (NN fist))))))) (. .)))
Together, the tendons and muscles allow you to bend and extend your fingers and thumb, for example, as in making a fist.
(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)))))))) (. .)))