Demonstration of Heart Function and Blood Circulation

What is the job of the Circulatory System?

The Circulatory System is responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen to your billions of body cells and carries away wastes such as carbon dioxide that body cells produce. It is an amazing highway that travels through your entire body connecting all your body cells

Parts of the Circulatory System

The circulatory System is divided into three major parts:

1. The Heart

2. The Blood

3. The Blood Vessel The Heart

   1. The Heart is an amazing organ. The heart beats about 3 BILLION times during an average lifetime. It is a muscle about the size of your fist. The heart is located in the center of your chest slightly to the left. It's job is to pump your blood and keep the blood moving throughout your body.

      1. It is your job to keep your heart healthy and there are three main things you need to remember in order to keep your heart healthy.

      2. Exercise on a regular basis. Get outside and play. Keep that body moving (walk, jog, run, bike, skate, jump, swim).

      3. Eat Healthy. Remember the Food Pyramid and make sure your eating your food from the bottom to top.

      4. Don't Smoke! Don't Smoke! Don't Smoke! Don't Smoke! Don't Smoke!

Show students the circulatory system in action with this working model. Simply squeeze the simple bulb “pump” to send the dyed liquid through the four-chambered heart and plastic “vessels”. The venous tubing is tinted blue to differentiate between oxygenated and non-oxygenated blood. Dye and a syringe are included to refill the system.

There are four sections of the heart. The left atrium,the left ventricle,(is on right side of our perspective and viseversa)the right atrium, and the right ventricle. The right side pumps non-oxygenated blood to the lungs, turning it to oxygenated blood. From there it goes to the left side of the heart, and gets pumped to all the organs that need blood to function properly. Then it goes back to the right side of the heart as non-oxygenated blood. Then the cycle repeats.