6. The study of the various parts of the body, how they are formed and joined together, is anatomy. Physiology tells us what the body does, hygiene tells us how to take care of it.
CHAPTER II
A GENERAL VIEW OF THE BODY.
1. Parts of the Body.—What do we call the main part of a tree? The trunk, you say. The main part of the body is also called its trunk. There are two arms and two legs growing out of the human trunk. The branches of a tree we call limbs, and so we speak of the arms and legs as limbs. We sometimes call the arms the upper extremities, and the legs the lower extremities. At the top of the trunk is the head.
2. Names of the Parts.—Now let us look more closely at these different parts. As we speak the name of each part, let each one touch that part of himself which is named. We will begin with the head. The chief parts of the head are the skull and the face. The forehead, the temples, the cheeks, the eyes, the ears, the nose, the mouth, and the chin are parts of the face.
3. The chief parts of the trunk are the chest, the abdomen (ab-do´-men), and the backbone. The head is joined to the trunk by the neck.
4. Each arm has a shoulder, upper-arm, fore-arm, wrist, and hand. The fingers are a part of the hand.
5. Each leg has a hip, thigh, lower leg, ankle, and foot. The toes are a part of the foot.