( ( ( The ( Muscular ( and ( Skeletal Systems ) ) ) ) 1 ) . )
(ROOT (NP (NP (DT The) (NNP Muscular) (CC and) (NNP Skeletal) (NNP Systems)) (NP (CD 1)) (. .)))
The Muscular and Skeletal Systems 1.
(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.