1. Muscles are the red, elastic bands and bundles of thread like substance, called flesh, which cover the bones and make the eyeballs, the eyelids, the tongue, the heart, the lungs, and various other parts of the body.
2. There are about four hundred and fifty muscles in my body.
3. The work of the muscles is to support and move my bones, and different parts of the body.
4. The muscles may be named the muscles of my head, the muscles of my trunk, the muscles of my limbs.
5. The muscles of my head cover and move the parts of my head and face. The muscles of my trunk cover and move the parts of my neck and trunk. The muscles of my limbs cover and mote the parts of my arms and legs.
6. Those muscles are the weakest which I use least; those muscles are the strongest which I exercise most in work or play.
7. If I would be strong and healthy,
my muscles must be used,
my muscles must be rested,
my muscles must be supplied with good blood.