A Virtual Dissection of the Human Body

1. A Virtual Dissection of the Human Body By: Kayla Smith Next slide

2. Audience, Environment, & Objectives • Audience: 5th grade gifted and talented students interested in science • Environment: 1-3 students per computer (with this PowerPoint presentation loaded on each computer) in a computer lab, library, or classroom with a teacher or supervisor • Objectives: 1) After viewing the PowerPoint for 1 hour, the students will be able to answer 6 of 10 questions correctly; 2) students will be able to briefly explain the function of each major body system; 3) Students will be able to identify body systems or organs by looking at simple diagrams Next slide

3. How to use this PowerPoint… Go to next slide Go to previous slide Go to home slide… “Click on each system to learn more” Click here to begin!

4. Welcome to a Look Inside YOUR Body! • Have you ever wondered what it would be like to not only see the outside of your body, but the inside as well? Well here is your chance… • Click the bodies if you are ready to begin! http://chronicle.uchicago.edu/030320/between-boards.shtml (motivation)

5. Click on Each System to Learn More! Nervous System Respiratory System Circulatory System Muscular System Digestive System Skeletal System http://www.3dscience.com/3D_Models/Human_Anatomy/Skin/ Click on the star once you have reviewed all the systems (orientation)

6. Nervous System • This system is made up of your brain, your spinal cord, and an enormous network of nerves that thread throughout your body. • Your brain is the control center for your whole body. It uses information it receives from your nerves to coordinate all of your actions and reactions. • There are around 30,000 million nerve cells throughout your body that are continuously sending messages to one another so that you perform actions (voluntary and involuntary) to stay alive. (Information)

7. Nervous System (continued) Spinal Column Spinal Cord Brain http://www.y2kjon.com/blog/ http://www.brighamandwomens.org/Neurosurgery/Patient/VHLclinicFacts.aspx Neuron (Information) http://strangepaths.com/2006/12/it/

8. Muscular System • Muscles are bundles of cells and fibers. • Muscles work in a very simple way. All they do is tighten up--that is, contract (lengthen)--and relax (return to original size). • Some muscles move voluntarily, like swinging your arm or kicking your leg. • Other muscles move involuntarily, like your heart beating. You can't control how fast it beats just by telling it to. • There are 630 active muscles in your body and they act in groups. (Information)

9. Muscular System (continued) Arm Muscle http://www.gwc.maricopa.edu/class/bio201/muscle/arm/shldrp.htm (Information)

10. Skeletal System • Humans have 206 bones in their bodies • Bones have 2 purposes: to provide structure for your body and to protect your organs • Bones also make blood cells and store useful materials • Some bones are joined by flexible parts, called joints • Muscles also hold together bones and allow them to move • The smallest bones are in your ear • The largest bone is the femur, in your leg (Information)

11. Skeletal System (continued) Bone scan Femur http://www.physics.ubc.ca/~mirg/home/tutorial/applications.html http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/long254.html (Information)

12. Respiratory System • When you breathe in, your body gets oxygen from the air. Rib muscles contract to pull ribs up and out, the diaphragm muscle contracts to pull down the lungs, and your lungs expand like balloons. • When you breathe out, you get rid of other gases that your body does not need. Rib muscles relax, the diaphragm relaxes, and lung tissue returns to resting position and forces air out. • The air sacs in your lungs bring new oxygen from air you've breathed to your bloodstream. They exchange oxygen for waste products, like carbon dioxide, which the cells in your body have made and can't use. (Information)

13. Respiratory System (continued) Outside of the lungs Inside of the lungs http://www.rivendell-peds.com/asthma-2.htm http://library.thinkquest.org/05aug/00387/ENGELS/typesofcancer/lung/lungcancer2.htm (Information)

14. Circulatory System • Inside your heart are 4 hollow chambers. Each chamber is a little pump. The pumping pushes blood all around your body. • Red blood cells carry oxygen from the lungs to all the cells of the body. White blood cells are like soldiers protecting the body. • Arteries are vessels that carry blood away from the heart. Veins are vessels that carry blood back to the heart. • Blood circulates all around your body in about one or two minutes, delivering oxygen, energy, and nutrients along the way. On the way back, it picks up waste products so that your body can excrete them. (Information)

15. Circulatory System (continued) Veins (blue) & Arteries (red) Heart http://freecape.com/2007/03/ http://surgeonsblog.blogspot.com/2007/10/post-in-vain.html (Information)

16. Digestive System • When you eat, your body digests the food so your cells can use it to make energy. • Acids and enzymes (proteins) in the stomach and small intestine eat away at the surface of food to break it down into very small particles. • Food molecules enter the bloodstream through the small intestine and travel around the body to provide energy. • The food that your body does not need for energy instead goes on to the large intestine where it is dried out and excreted. (Information)

17. Digestive System (continued) Where stomach meets small intestine Stomach Small Intestine Large Intestine http://www.homeomiracles.com/Index/Digestive/Digestive_article/peptic_ulcer/peptic%20Ulcer.html (Information)

18. Now, Let’s Put it all Together… • Click on the video link! • http://youtube.com/watch?v=iMyA-Hq46Z4&feature=related (Application)

19. Pop Quiz • There are 10 questions. Click on the correct answers. • Each person must write down his/her answer on a sheet of paper and “X” it out if it was incorrect • If you answer correctly, you will move onto the next question • If you answer incorrectly, you will review information before moving on to the next question • Total your number of correct questions at the end for your score (Orientation/Evaluation)

20. Question #1 • What attaches to your brain and helps send messages throughout your body? • A) Spinal column • B) Spinal cord • C) Neuron cord • D) Neuron network (evaluation)

21. Correct! • The spinal cord attaches to your brain and helps send messages throughout your body. (evaluation)

22. Incorrect! Remember… • The nervous system is made up of your brain attached to your spinal cord, and an enormous network of nerves that thread throughout your body. • Your brain is the control center for your whole body. It uses information it receives from your nerves to coordinate all of your actions and reactions. • There are around 30,000 million nerve cells throughout your body that are continuously sending messages to one another so that you perform actions (voluntary and involuntary) to stay alive. (evaluation)

23. Question #2 • How many bones are in the human body? • A) 106 • B) 206 • C) 306 • D) 406 (evaluation)

24. Correct! • There are 206 bones in the human body. (evaluation)

25. Incorrect! Remember… • Humans have 206 bones in their bodies • Bones have 2 purposes: to provide structure for your body and to protect your organs • Bones also make blood cells and store useful materials • Some bones are joined by flexible parts, called joints • Muscles also hold together bones and allow them to move • The smallest bones are in your ear • The largest bone is the femur, in your leg (evaluation)

26. Question #3 • What body system is shown in this diagram? • A) Respiratory System • B) Circulatory System • C) Digestive System • D) Muscular System (evaluation)

27. Correct! • That is the digestive system. (evaluation)

28. Incorrect! Remember… • This system shows the stomach, small intestine, and large intestine of the digestive system (evaluation)

29. Question #4 • Which is a function of muscles? • A) Contracting • B) Relaxing • C) Providing a source of energy • D) Only A and B • E) All of the above (evaluation)

30. Correct! • Muscles contract and relax. (evaluation)

31. Incorrect! Remember… • Muscles are bundles of cells and fibers. • Muscles work in a very simple way. All they do is tighten up--that is, contract (lengthen)--and relax (return to original size). • Some muscles move voluntarily, like swinging your arm or kicking your leg. Other muscles move involuntarily, like your heart beating. You can't control how fast it beats just by telling it to. • There are 630 active muscles in your body and they act in groups. (evaluation)

32. Question #5 • What does blood pick up on its way back to the heart? • A) Oxygen • B) Nutrients • C) Water • D) Waste (evaluation)

33. Correct! • Blood picks up waste on its way back to the heart. (evaluation)

34. Incorrect! Remember… • Inside your heart are 4 hollow chambers. Each chamber is a little pump. The pumping pushes blood all around your body. • Red blood cells carry oxygen from the lungs to all the cells of the body. White blood cells are like soldiers protecting the body. • Arteries are vessels that carry blood away from the heart. Veins are vessels that carry blood back to the heart. • Blood circulates all around your body in about one or two minutes, delivering oxygen, energy, and nutrients along the way. On the way back, it picks up waste products so that your body can excrete them. (evaluation)

35. Question #6 • What is the name of the muscle that helps the lungs inflate? • A) Spleen • B) Heart • C) Ribs • D) Diaphragm (evaluation)

36. Correct! • The diaphragm helps the lungs inflate and deflate. (evaluation)

37. Incorrect! Remember… • When you breathe in, your body gets oxygen from the air. Rib muscles contract to pull ribs up and out, the diaphragm muscle contracts to pull down the lungs, and your lungs expand like balloons. • When you breathe out, you get rid of other gases that your body does not need. Rib muscles relax, the diaphragm relaxes, and lung tissue returns to resting position and forces air out. • The air sacs in your lungs bring new oxygen from air you've breathed to your bloodstream. They exchange oxygen for waste products, like carbon dioxide, which the cells in your body have made and can't use. (evaluation)

38. Question #7 • What does this diagram represent? • A) Neuron • B) Bacteria • C) Light reflecting in your eyes • D) Microscopic organism http://strangepaths.com/2006/12/it/ (evaluation)

39. Correct! • That picture shows a neuron. (evaluation)

40. Incorrect! Remember… • Neurons create a branching network that reaches throughout your body, as seen in the picture (evaluation)

41. Question #8 • Which system exchanges new oxygen (a gas) for old carbon dioxide (a gas) throughout your body? • A) Circulatory System • B) Muscular System • C) Respiratory System • D) Digestive System (evaluation)

42. Correct! • The respiratory system exchanges new oxygen for old carbon dioxide throughout your body. (evaluation)

43. Incorrect! Remember… • In the respiratory system, the air sacs in your lungs exchange oxygen for waste products, like carbon dioxide, which the cells in your body have made and can't use. (evaluation)

44. Question #9 • What helps break down big food chunks into tiny molecules in your stomach and small intestine? • A) Acids and enzymes • B) Acids and water • C) Enzymes and water • D) A mixture of unknown liquids (evaluation)

45. Correct! • Acids and enzymes help break down big food chunks into tiny molecules in your stomach. (evaluation)

46. Incorrect! Remember… • In the digestive system, when you eat, your body digests the food so your cells can use it to make energy. • Acids and enzymes (proteins) in the stomach and small intestine eat away at the surface of food to break it down into very small particles. • Food molecules enter the bloodstream through the small intestine and travel around the body to provide energy. • The food that your body does not need for energy instead goes on to the large intestine where it is dried out and excreted. (evaluation)

47. Question #10 • Which body system is NOT being used while you are sleeping? • A) Skeletal System • B) Nervous System • C) Digestive System • D) Circulatory System • E) All of the above are being used (evaluation)

48. Correct! • The systems in your body never stop or rest while you are alive, even if you are sleeping. (evaluation)

49. Incorrect! • All of the different systems of your body are always working together to keep you alive. That is why your heart doesn’t stop beating, your lungs don’t stop breathing, and your brain doesn’t stop working…even while you are sleeping. (evaluation)

50. Congratulations… • You have reached the end of the quiz! • Add up the number of correct answers for your score.