• Question: Why do we get muscles on our arms?

    Asked by to Andrea on 20 Mar 2014. This question was also asked by .
    • Photo: Andrea Hanvey

      Andrea Hanvey answered on 20 Mar 2014:

      We have muscles So we can move our arms. You send messages from your brain to your muscles so that you can move.

Comments

  • Photo: Amar

    Amar commented on :

    I can add to this. Muscles usually occur in pairs. That’s because muscles are great at pulling but rubbish at pushing. You need one muscle on your arm to bend your elbow (your bicep on the front) and another to straighten your arm (your tricep on the back)