by Roger Fielding, The Conversation Muscles move your limbs and body by contracting or releasing. Credit: J. Gordon Betts, Kelly A. Young, James A. Wise, Eddie Johnson, Brandon Poe, Dean H. Kruse, Oksana Korol, Jody E. Johnson, Mark Womble, Peter DeSaix via OpenStax, CC BY There is perhaps no better way to see the absolute pinnacle of...
