Take, for example, the foot. It has 26 bones, 19 muscles, and 107 ligaments. Walking up stairs requires the cooperation of 300 different muscles. The sense-receptors in your foot let your brain know exactly what kind of surface you’re walking on: rocks, ice, soft sand, and your foot immediately adapts. In the course of your life, you will walk about 100,000 miles. If you walk or jog for exercise, of course, that number will be higher. Although most people don’t often do this, the toes can be used to pick up things. Some people can even write or draw with their feet. All this is done when our body, brain, bones, muscles, and ligaments cooperate together.
SOURCE: Facts about the Human Foot from "The Original Inspirational Bathroom Book", Pp. 31 & 277.