( ( Muscular ( & ( Skeletal System ) ) ) ... )
(ROOT (NP (NP (NNP Muscular) (CC &) (NNP Skeletal) (NNP System)) (: ...)))
Muscular &amp; Skeletal System ......
(ROOT (S (ADVP (RB Together)) (, ,) (NP (DT the) (JJ muscular) (CC and) (JJ skeletal) (NNS organs)) (VP (VBP are) (VP (VBN known) (PP (IN as) (NP (DT the) (JJ musculoskeletal) (NN system))))) (. .)))
Together, the muscular and skeletal organs are known as the musculoskeletal system.