Amazing Facts About Muscles and Bones

1.) The biggest muscle is the gluteus maximus in the buttock; the smallest the stapedius deep in the ear. It is thinner than cotton thread.

2.) The face contains more than 50 muscles, which give us our huge range of facial expressions.

3.) About one person in 20 has two extra ribs, making 13 pairs instead of 12.

4.) Bone is one of the strongest known materials, for its weight.

5.) Each of our bones contain about one-fifth water, which means the whole skeleton of an adult contains more than two litres of water.