The Human Body

This is a book about your body.

It has ten lessons.

Each lesson tells about a part of you.

Lesson 1: Everybody Has a Body

Everybody has a body.

Your body is made of many parts.

All the parts work together.

We call this a system.

Lesson 2: The Body's Framework

Your body has bones inside.

Bones make a frame.

This frame is called a skeleton.

The skeleton holds you up.

Lesson 3: Marvelous Moving Muscles

Muscles help you move.

Muscles are strong.

They help you run and jump.

Lesson 4: Chew, Swallow, Squeeze, and Churn

Your body turns food into energy.

First, you chew your food.

Then, you swallow it.

Your body squeezes and churns the food.

This is called digestion.

Lesson 5: The Body's Superhighway

Blood moves all through your body.

It moves like cars on a highway.

Your heart pushes the blood.

The heart is a muscle.

It never stops working.

Lesson 6: Control Central: The Brain

Your brain is inside your head.

The brain controls your whole body.

It is like a control center.

Lesson 7: Dr. Welbody's Heroes

Germs can make you sick.

Doctors give shots called vaccines.

Vaccines help stop sickness.

Edward Jenner made the first vaccine.

Louis Pasteur found a way to keep food safe.

This way is called pasteurization.

Lesson 8: Five Keys to Health

Five things keep you healthy.

Exercise keeps you strong.

Staying clean keeps germs away.

Eating good food helps too.

Rest helps your body grow.

Doctor checkups help you stay well.

Lesson 9: The Pyramid Pantry

A balanced diet means eating many kinds of food.

A food pyramid is a picture.

It shows the different food groups.

Eating from each group keeps you healthy.

Lesson 10: What a Complicated Network!

Your body has many systems.

All the systems work together.

Bones, muscles, and organs are a team.

They help you every day.