1. List the three major divisions (parts) of the
In your notebook…
List the three major divisions (parts) of the
Circulatory System

2. Heart
Blood
Blood
Vessels

3. 3 Divisions of the Circulatory System
1. Heart: Acts as a pump
2. Blood Vessels: Tubes to transport blood
3. Blood: Liquid that contains blood cells, nutrients and waste material.

4. Functions of Circulatory System
1. Deliver oxygen and food to the body cells.
2. Remove carbon dioxide and waste from the body cells.
3. Provide defense against foreign invaders
4. Acts as a chemical messenger between organs.
5. Maintains HOMEOSTASIS

5. Heart Facts … Is an organ made of cardiac muscle tissue.
Is about the size of your fist and is located in the center of your chest.
Works as a pump; 5 liters of blood/min, 1800 gallons of blood per day!

8. DO NOW What are the three Divisions of the circulatory system?
List the functions of the circulatory system.

9. Today’s Objective
You will label and identify the parts of the heart as the blood flows through it.

12. 1 9 5 6 7 3 8 4
Septum 10 2

13. The Amazing Double Pump
Why is the
Heart called
A double pump?

14. DO NOW What are the two upper chambers of the heart called?
The two lower chambers?

15. Label the 4 chambers, which side has deoxygenated and
Oxygenated blood.

16. Oxygenated: Oxygen rich blood.
Deoxygenated: Oxygen poor blood.
Artery: Blood vessels carrying blood away from the heart (almost always oxygenated)
Vein: Blood vessels carrying blood to the heart (almost always deoxygenated)

17. DO NOW
What are the three pathways of circulation?

18. Three pathways of Circulation
1. Pulmonary (lungs) Circulation: Blood to and from the lungs.
2. Systemic Circulation: Blood to and from the body cells.
3. Coronary circulation: Blood to and from the heart muscle.

19. Do arteries and veins ever end? If not, what happens?

23. DO NOW Why do veins have valves in them and not arteries?
How do you think oxygen gets from the blood into the cells?
Through the walls of the tiniest blood vessels
Capillaries.

24. Capillary Bed: Where veins and arteries
Meet. Capillary walls are only 1 cell
Thick. Why?

25. Only 1 blood cell passes through the capillary at a time.
The capillary wall is so thin that the oxygen diffuses right through to the cells. O2 O2 O2
Oxygen
CO2

26. DO NOW:
What does this
Diagram show?
Explain.

27. Cardiovascular Disease
1. Atherosclerosis:
Fatty deposits on the arterial walls.

28. 2. Hypertension High blood pressure
Blood pressure: The pressure exerted on the arterial walls when the heart contracts and relaxes.
Normal BP = 120/80
Diastolic (ventricles contracting)
Systolic (ventricles relaxed)

29. 3. Myocardial Infarction
Heart attack
Lack of blood to the heart muscle, tissue dies in that area
A blocked coronary artery
Stent

30. DO NOW What is atherosclerosis?
What can atherosclerosis lead to if not treated?
Today’s Objective: 4 parts of the blood

31. Oxygen
Capillaries
Carbon dioxide
Capillaries in the body transfer __________ to the body cells and pick up _______ ____________.
Capillaries in the lungs transfer ________ ________ to the lungs and pick up ___________.
oxygen
Carbon dioxide

32. Blood Blood makes up about 7% of your body's weight.
An average adult has about 14 to 18 pints of blood.
One standard unit or pint of blood equals about two cups.
Blood carries oxygen and nutrients to all of the body.
Blood carries carbon dioxide and other waste products back to the lungs, kidneys and liver for disposal.

33. 4 Parts of Blood 1. Plasma: The liquid part of blood.
95% of plasma is water, 5% is dissolved nutrients, proteins, and hormones.
55% of the blood is plasma
Plasma’s job is to carry the blood cells and other nutrients.

34. 2. Red Blood Cells
Flexible red disks that contain the protein hemoglobin.

35. Hemoglobin Hemoglobin binds to and carries oxygen.
Hemoglobin contains iron.

36. Red blood cells have no nucleus.
They only live about 120 days.
They are made in the bone marrow

37. 3. White Blood Cells

38. Defense system
White blood cells seek out and destroy invaders such as bacteria and viruses.
They are large and have a nucleus.
They have a short life span from a few days to a few weeks long.

39. 4. Platelets Pieces of cells They have a nucleus
They make fibrin which is a substance that makes blood clot (scabs)

40. Platelets form a net
Blood cells get caught in the net

41. DO NOW
What are the 4 parts of the blood and what is their function (job)?
Objective: List and define 4 blood types
Determine which blood types can be donated and received.

42. Blood Type
Everyone is born with a certain blood type that is inherited from your parents.
Blood type is determined by a protein marker on the red blood cell.
These proteins are called antigens.

43. 4 Blood Types
A has a “A” antigen marker
B has a “B” antigen

44. O has no antigen marker
What does AB blood type have?
Both A and B antigens.

45. Can your blood be given to someone else?
Yes, only if it is the blood type matches.
What would happen if the blood type does NOT match?

46. Antigen: Antibody: Distinctive protein on the pathogen (bad guy)
Protein that sticks to the antigen (made by WBCs in your body)

47. Every cell has a unique antigen
Antigens

48. Antibodies Recognize Antigens
White blood cells make antibodies.
Antibodies stick to pathogens.
White blood cells eat pathogens.
White
Blood Cell
Antibody

49. WBC

50. Every cell has a unique antigen
You do not make antibodies against your own antigens!
Antibody
Antigens

51. Inside Your Body…
Flu Virus
Your stomach cell

52. Some transplants are rejected by the body.
Your heart muscle cell
Heart Transplant Cell
Some transplants are rejected by the body.

53. A Red Blood Cell from donated blood
Your Red Blood Cell
Some blood transfusions are rejected by the body.

54. Safe Transfusions Blood Type Has Antibodies: Will Attack: Can Accept:AB O

55. DO NOW Draw the Antigen Donor Patient Smiley/sad face Type A Type O
Type B
Type AB

56. Diseases of Blood Anemia: Low hemoglobin in RBC’s
Hemophilia: platelets don’t function
Leukemia: Cancer of the blood. Excessive amounts of WBC’s that have no function.
AIDS: HIV virus that invades and destroys white blood cells -

57. Blood Typing Game

58. Diseases of Blood