What makes muscles contract? A physiologist explains how muscles move

A lot goes into making sure your muscles can move your body. Kentaroo Tryman/Moment via Getty Images Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What makes the cells of the muscles contract? – Samarth, age 13, India Muscles are amazing. They’re what let you strum a guitar, kick a soccer ball and high-five your friends. When you decide to move, your brain tells your muscles what to do,…