People Grow and Change by Denise Carroll

Life Cycle People grow and change.

THINK: How does your body grow and change?

As you grow, your appearance changes. All people grow and change. You get bigger. You get taller. You get stronger You get heavier. Your looks change. Your hair style changes. Permanent teeth grow. You learn new things. All people grow and change.

Teeth Each person has two sets of teeth during his lifetime. The first set is called baby teeth. There are 20 baby teeth. Between the ages of 6-13, a person will lose these teeth. Between the ages of 6-17, the baby teeth are replaced with permanent teeth. There are 32 permanent teeth.

The Skeleton The skeleton is all the bones in your body. You have about 206 bones in your body. Bones protect organs such as the brain, the heart, and our lungs. Bones give us shape. Without our skeleton, we would be a blob of tissue on the floor. Bones help us to move. Muscles are attached to our bones, when our muscles move, they move the bones, and we move. The skeleton gives the body shape and support. The skeleton also protects many organs and soft parts that are inside of the body. The structure is comprised of 206 bones and is held together by cartilage.

Muscles Bones and muscles work together. Muscles are body parts under the skin that helps the bones move. Muscles allow you to bend or straighten your arms and legs. There are more than 600 muscles in the human body. Muscles help the body move by pulling bones. They also aide in a variety of functions such as; breathing, blinking, walking and grabbing. There are 600 muscles in the human body and are categorized into three groups; skeletal muscle, smooth muscle and cardiac muscle.

THINK: What do my bones and muscles do?

Bones and Muscles Bones give our body shape. Bones protect organs. Bones and muscles work together to move the body. Exercise and healthful foods keep our bones and muscles healthy.

Do you remember how many bones are in your body? c. 560

Sorry, click on NO and try again!

You’re Right! Click on YES to go to the next slide.

The Heart Your heart is a muscle that pumps blood to every part of your body. It is about the size of your fist and weighs less than a pound. It keeps you alive. Your heart pumps more than 5 quarts of blood through the body every minute. Your heart rate is how fast or slow your heart beats. Your heart beats about 72 times a minute. The heart is the most important part of the body, it keeps you alive and it runs the body and sends messages to other body parts and tells them what to do. The heart is the size of a fist, weighs 9 ounces and is separated into three parts. The heart is hollow and made of muscle.

What do you think will happen to our heart rate when we exercise? Let’s see!

Lungs Your lungs are body parts that help you breathe the air you need to live. You have two lungs. When you breathe air through your mouth or nose, the air goes down a tube to your lungs. When you breathe your chest expands.

How does your heart and lungs work together? Your heart and lungs help keep you alive. Your heart and lungs carry oxygen to all parts of the body. Exercise makes the heart and lungs stronger and healthier.

Let’s learn how our body digests food. Digest means to break down food in the body.

Esophagus When you chew your food, it mixes with a liquid in your mouth called saliva. Saliva helps break down food. Once food has been chewed and swallowed, it goes down a tube called the esophagus.

Stomach Once the food goes down the esophagus, the food enters the stomach. The stomach continues to break down the food. It has muscles that mash food into a sloppy soup.

Large and Small Intestines Food leaves the stomach and enters the small intestine. Nutrients your body needs from the food you eat goes to all parts of the body. You have about 20 feet of small intestines. Food that your body does not need goes to the large intestine. L S

THINK: How do I digest food?

Digestive System Digestion begins when food enters the mouth where saliva and teeth break it down. Once food has been chewed and swallowed, it goes down a tube called the esophagus to the stomach. Stomach muscles mix the food and moves it to the small intestine. Food that your body does not need goes to the large intestine.

The Food Guide Pyramid will show us how to choose healthy foods. Eating Healthy Foods The Food Guide Pyramid will show us how to choose healthy foods. Grains Vegetables Fruits Oils Milk Meat & Beans

Eating healthy foods will help your body grow and give you energy. We will learn more about the food guide pyramid in the next slide show.

THINK: What can we do to keep our body healthy?

Staying Healthy Eat the right foods Get plenty of exercise Get plenty of rest Don’t smoke Don’t take drugs or drink alcohol

Congratulations! You have learned how your body grows and changes. You have also learned about many organs and how your body digests food. YOU’RE A WINNER!

Resources http://images.search.yahoo.com http://office.microsoft.com/clipart http://www.mypyramid.gov/index.html