( Cardiac ( - ( ( ( these muscles ) ( ( ( ( are ( muscles ( of ( the heart ) ) ) ) , ) and ) ( also ( controlled ( by ( our ( autonomic ( nervous system ) ) ) ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (NNP Cardiac)) (: -) (S (NP (DT these) (NNS muscles)) (VP (VP (VBP are) (NP (NP (NNS muscles)) (PP (IN of) (NP (DT the) (NN heart))))) (, ,) (CC and) (VP (ADVP (RB also)) (JJ controlled) (PP (IN by) (NP (PRP$ our) (JJ autonomic) (JJ nervous) (NN system)))))) (. .)))
Cardiac- these muscles are muscles of the heart, and also controlled by our autonomic nervous system.
(ROOT (S (NP (NNP Cardiac) (NN muscle)) (VP (VBZ makes) (PRT (RP up)) (NP (NP (JJS most)) (PP (IN of) (NP (DT the) (NN heart))))) (. .)))