muscle power

with its strong bones and flexible joint your  skeleton is built  to be  on the but without muscles it won't  go anywhere you need muscle  power  to make your  walk run skip rub  your nose or even just sit  up without toppling over. The muscle  that to these jobs are called skeletal muscles you hare about 65o of them and you can  control what they do sometimes  it takes a lot of skeletal muscle to make even a simple  move your  tongue alone contains  eight muscle  you also have  muscles that wort without your having to do  a thing. Most  of these muscles. Sheet of  are called smooth  muscle line your  blood circulation  throat stomach intestines lungs and other organs they are hard at work keeping your food digesting  while you'er while you'er  busy doing other things . And there's busy doing other things. and there's also  that mighty muscle  your heart. It pumps thank to cardiac muscles witch are found only in the heart. bet you didn't  know some your body's strongest muscles aren't in your arms or leg. They'er  in your jaws. these strong muscles are called the masters they help you chew by closing your  lower jew. clenching your teeth will make your masters bulge so you can feel them. from called book national geographic kids  almanac