Completar frases The interaction functionVersión en línea Complete the sentences por maria antonia Iglesias 1 movements helps joints nervous tendons receive system involuntary protects relax shapes supports response contract protects nervous move muscular In the interaction function we information and create a . There are three systems involved : system , skeleton and system . The system controls everything we do . The skeleton system our body and our internal organs . Bones are connected by . The muscular system our body , us to and internal organs . Muscles are connected to bones by . There are two important : voluntary and . Muscles and to move our body .
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