Cardiovascular & Circulatory Systems

1. Cardiovascular & CirculatorySystems

2. If we looked at all the blood vessels in your body, what would the total length be? Around the world twice! How many times will your heart beat in a lifetime? 3 billion!! Fun Facts!!!

3. 1. Function of CV system Provides nutrients and oxygen through blood Carries away waste (CO2) Helps fight disease

4. Cardiovascular & Circulatory System • Three Parts: • Heart • Blood Vessels • Blood

5. Structures - Heart • Shape- Strawberry • Size-Fist • Weight- 1 pound • Location- Center of the chest

6. THE HEART

7. Heart - Structures • 1. Septum– Divides the Heart into Right and Left • 2. Chambers • Atrium – Top (smaller) • Ventricle- Bottom (bigger) • 3 Valves- keep blood flowing in one direction

8. RT Side- Without 0xygen LT Side- With Oxygen

9. Blood Vessels • 1. Arteries (RED) -Carries Blood Away from the Heart • 2. Veins (BLUE)- Carry Blood Back to the Heart • 3. Capillaries -Where exchange of nutrients takes place (O2, Waste, Etc…)

10. Blood Vessels • http://www.youtube.com/watch?v=CjNKbL_-cwA • Circulation- http://www.youtube.com/watch?v=PgI80Ue-AMo&feature=related • Capillaries- http://www.youtube.com/watch?v=Q530H1WxtOw

11. Blood Pressure Definition: The Force of the Blood against the Walls of the Arteries Systole: Top Number of Blood Pressure (ventricles contracting) Diastole: Bottom Number of Blood Pressure (ventricles filled w/ blood and relaxed) 120/80

12. Blood - Function • Carries food and oxygen to all cells • Rid the body of waste

13. Blood Components 1. Red Blood Cells 2. White Blood Cells 3. Platelets 4. Plasma

14. Red Blood Cells • Made in the Marrow of Bones • Carry Oxygen • Hemoglobin • The Protein that attracts O2 to the RBC • Prone to Defect/illnesses

16. Blood Components • http://www.youtube.com/watch?v=R-sKZWqsUpw • http://www.youtube.com/watch?v=CRh_dAzXuoU

17. White Blood Cells • 1.Made in the Marrow of Bones • 2. Defend the Body against Disease

18. Plasma • The Liquid part of Blood (55% of blood) • Mostly Water

19. Blood Components

20. Platelets • 1. Aid in the clotting of blood • 2. How does it do this? • Cut occurs. Platelets Activated • Platelets RUSH to the wound • Fibrin is released (Spider Web) • Web is formed over Wound • Trapped Cells Harden and form a Scab

21. PLATELETS = SPIDERMAN

22. Cut occurs…. Platelets Actived! PLATELETS- STEP 1

23. Platelets RUSH to the wound! PLATELETS – STEP 2

24. Fibrin is released (Spidey Web) PLATELETS- STEP 3

25. Web is formed over Wound. PLATELETS – STEP 4

26. -Trapped Cells Harden and form a Scab PLATELETS – STEP 5 SPIDEY SAVES THE DAY 

27. Blood Types • A, B, AB, O • Donor-Person who gives blood • Receipt- Person who receives blood • Clumping-Occurs when the blood types do not mix

28. Blood Types A, B, AB, O Recipient D o n o r *O = Universal Donor *AB =Universal Recipient

29. BLOOD TYPES http://www.youtube.com/watch?v=MZ6_hSvjV_E

30. Really hard Logic/Blood Type Puzzle? Use the following information to predict each person's blood type. Bill can give blood to joe mike and sue Don can give blood to bob but not bill Bob can give blood to Mike but not Joe Tom can give blood to kelly, Sue, Don, and mike Kelly can give blood to sue and bob but not to tom sue cannot give blood to kelly joe can give blood to mike but not bob or sue mike can GET blood from sue and bill Joe does not have an A antigen Bill________ Bob_______ Don_______ Joe_______ Kelly______ Mike_______ Sue_______ Tom_______ Answer in terms of blood type (A, B, AB, or O) By the way, this may help: a can be given to a or ab b can be given to b or ab ab can be given to ab o can be given to anyone http://answers.yahoo.com/question/index?qid=20080526202704AAo5bWa BLOOD TYPE CHALLENGE

31. SO how does blood move through the heart and body???

32. http://www.youtube.com/watch?v=mH0QTWzU-xI Lets see how the heart works

33. Heart Animation • http://www.youtube.com/watch?v=H04d3rJCLCE • http://www.youtube.com/watch?v=rBQOLiFto6Q

34. Circulation Pulmonary- blood with little oxygen is pumped from rt side of heart to lungsSystemic- blood rich with oxygen is from lt side of heart to cells of the bodymyocardium- special type of muscle that helps heart contract rhythmically

36. Superior Vena Cava Aorta Pulmonary Artery Pulmonary Vein RT Atrium LT Atrium Tricuspid Valve LT Ventricle Bicuspid Valve RT Ventricle Inferior Vena Cava Septum

37. 1. Blood enters through superior and inferior vena cava

38. 2. The blood enters the right atrium

39. 3. Blood spills into right ventricle

40. 4. Blood enters the pulmonary arteries.

41. 5. From here, blood goes to your lungs to pick up O2

42. 6. Oxygen rich blood returns to your heart through pulmonary veins

43. 7. Blood enters left atrium.

44. 8. Blood enters the left ventricle

45. 9. Blood is pumped through the aorta and delivered to rest of body.

47. Pathway of Blood Through the Heart • Any questions? • Lets watch it again… • Pathway of Blood

48. 1. Blood needing oxygen enters heart through superior and inferior vena cava 2. The blood enters the right atrium 3. The tricuspid valve opens and blood flows into the right ventricle 4. From here, blood is pumped from the right ventricle to the pulmonary artery. Pathway of Blood Through the Heart

49. 5. The pulmonary artery leads to the lungs. Here blood picks up oxygen. 6. Oxygen rich blood returns to your heart through pulmonary veins 7. Blood enters left atrium 8. Through the mitral (bicuspid valve) 9. Into the left ventricle. Pathway of Blood Through the Heart

50. 10. From here, blood is pumped from the heart through the aorta – the largest artery in your body! From the aorta blood goes to the rest of the body Lets watch it again… Pathway of Blood Pathway of Blood Through the Heart