1. Let’s Ride the Digestive System!

2. Introduction There’s a new ride in town, and all of the kids cant wait for it to open It’s called the Digestive Roller Coaster Ride, and it teaches everyone the functions of the Digestive system and how it works. Tomorrows its opening day and Ms. Roger’s Class is taking a trip to Human Body Amusement Park to ride it and learn all about the Digestive System. The day has come and everyone gets on the bus to head to the park. When they arrive the park attendant tells them a little more about the ride and the functions of the system that the ride represents. He said the The digestive system consists of the _________, ____________, __________, _____, ____ ____________, ________, _____ __________, and a ____ ___________.

3. The Attendant asked the class that he would give them a organ from the digestive system and if they could tell him the correct function he would give them a prize. Attendant: What is the function of the stomach? Attendant: What is the function of the mouth? Attendant: What is the function of the esophagus?

4. Attendant: What is the function of the Liver? Attendant: What is the function of the Pancreas? Attendant: What is the function of the Gall Bladder? Attendant: What is the function of the small intestine?

5. Attendant: What is the function of the large intestine and the rectum? Attendant: Now were off to the ride ! Is everyone ready? Class: Yes ! As everyone takes turns riding the new ride something happens to the roller coaster causing it to come to a complete stop. The attendant say there must be something wrong with it. He explains to the students that this can also happen in the digestive system. If any type of disease were to get into it!

7. The Circulatory System

8. Can you feel it?! Exercise: finding your pulse

9. What are you feeling? When feeling your pulse, you are feeling the pressure exerted on your arteries from each heart beat. How many bpm (beats per minute) is an average resting heart rate? 60-100 bpm

10. Components of the Circulatory System The Heart Blood Capillaries Veins Arteries

11. Do you know how much blood is in your body? There are ______ of blood in your body. Let’s look at how much that is!

12. Blood Composition _____________- 45% of blood -Carry oxygen to cells and picks up carbon dioxide to deliver to the lungs -What gives blood its red color -There are about 5,000,000 cells in a speck of blood ______________- less than 1% - Fight infections - Colorless - Larger than red blood cells; about 10,000 in a speck of blood __________- about 5% of blood - Helps blood to clot or thicken - Smaller than RBC - About 250,000 in a speck of blood ________- more than 50% of blood - Carries RBCs, WBCs, platelets, and other nutrients throughout the body

13. Arteries -Blood vessels that always carry blood _______ from the heart. -Have _______ muscular walls which allow them sustain ________ amounts of blood pressure. -Have a pulse. -Arteries are_______ under the skin, and branch off at their ends into tiny arterioles which join to capillaries.

14. Veins -Blood vessels that always carry blood _____ the heart. -Have extremely _____ walls. -Do not have a pulse. -Have _____________ that stop back-flow of blood. -Near the _________ of the skin, and branch off at their beginnings into tiny venules which join to capillaries.

15. Capillaries An extremely important network that _________ all of the arteries and veins throughout the body. Primary location for where nutrients and _________ get transferred from the bloodstream and delivered to the cells. Waste products, such as __________, are picked up by the bloodstream.

16. The Heart Did you know your heart is a little bit bigger than the size of your ______? It is a muscular ______ and its main function is to pump blood throughout the body so cells and tissues can receive the vital materials in the blood that they need.

17. Anatomy of the heart -Atria: holding chambers -Ventricles: pump chambers -______ ventricle: pumps blood to the lungs to get oxygenated -______ ventricle: pumps oxygenated blood to the body -___________ arteries: carries deoxygenated blood to the lungs to pick up oxygen. -______________ veins: carries oxygenated blood from the lungs back to the heart -____________: Largest artery in the body that the left ventricle pumps blood into -___________: deoxygenated blood comes through these veins and empties into the right atrium.

18. How does blood get oxygen?

19. Beads and Blood Flow! 5 blue beads (deoxygenated blood), White (heart), 5 blue beads (deoxygenated blood), grey (lungs), 5 red beads (oxygenated blood), White (heart), 5 red beads (oxygenated blood), black (body).