Child's Health Primer For Primary Classes / With Special Reference to the Effects of Alcoholic Drinks, Stimulants, and Narcotics upon The Human System

by Jane Andrews

This kind of joint is the round end or ball of a long bone, which moves in a hole, called a socket.

Your joints do not creak or get out of order, as those of doors and gates sometimes do. A soft, smooth fluid, much like the white of an egg, keeps them moist and makes them work easily.

BONES.

What parts of our bodies are jointed together so nicely? Our bones.

How many bones have we?

If you should count all your bones, you would find that each of you has about two hundred.

Some are large; and some, very small.

There are long-hones in your legs and arms, and many short ones in your fingers and toes. The backbone is called the spine.

Backbone of a fish.