How Does Your Body Work Your Muscular System Rebecca L Johnson a Lerner Publications Company Minneapolis
Chapter 1 BODY MOVERS Every time you take a step blink your eyes or smile you can thank your muscles Muscles make you move Some movements are large You leap over a puddle You swing a bat Other movements are small You raise an eyebrow You tap your finger What do muscles make it possible for you to do 4
You can see some muscles at work Try making a muscle with your arm Can you see the muscle bulging just under your skin You can’t see other muscles in your body When you swallow muscles push food into your stomach Muscles in the stomach wall mix your food Muscles in your heart move blood through your body You can see some muscles just under your skin 5
