1. Aim: What is the function of the Circulatory System?
Do Now:
What is the purpose of the Circulatory System?
List two or more organs involved in the circulatory system.
What materials/substances travel in the blood?

2. Aim: What is the function of the Circulatory System?
Do Now: Label the parts of the heart. Label the diagram.

3. http://www. kidshealth

4. Function of the circulatory system
Transports oxygen and nutrients to organs and tissues
Carries away waste products from the organs and tissues
Increases the flow of blood to meet increased energy demands during exercise
Regulates body temperature
Transports antibodies and white blood cells to fight off foreign invaders
Sends clotting cells (Platelets) and proteins to the affected site, which quickly stops bleeding and promotes healing.

5. How does blood circulate throughout the body?

6. The circulatory system is made up of three parts:
1. Heart
2. Blood Vessels
3. Blood

8. Only in the past 400 years have scientists recognized that blood moves in a cycle through the heart and body.
Before the 17th century, scientists believed that the liver created new blood, the blood passes through the heart to gain warmth and finally is soaked up by the tissues.
In 1628 English physician William Harvey first proposed that blood circulates continuously.

9. The upper chambers are called the atrium (atria - plural).
The heart has 4 chambers
Heart – 4 chambered muscular organ that pumps blood throughout the body
The upper chambers are called the atrium (atria - plural).
The lower chambers are called the ventricles.
Right ventricle
Left
ventricle

10. Left
Right

11. Atrium (Atria) - an upper chamber of the heart
Collects blood from the veins and passes it to the ventricles.
Ventricles – lower muscular-walled pumping chambers of the heart
Right ventricle Pumps deoxygenated blood to the lungs
Left ventricle Pumps oxygenated blood to the body

12. Septum
The muscular wall separating the right and left sides of the heart.

13. Vena Cava - Two Large Veins that return blood from the upper and lower part of the body to the heart (right atrium)
Superior Vena Cava – brings blood from the upper part of the body to the right atrium
Inferior Vena Cava - brings blood from the lower part of the body to the right atrium

14. Right Atrium - right upper chamber of the heart that receives blood from the Vena Cava and sends blood to the right ventricle

15. Right Ventricle – right lower chamber of the heart that pumps blood into the pulmonary artery

16. Pulmonary Artery - the blood vessel that takes deoxygenated blood from the right ventricle to the lungs to receive oxygen

17. Pulmonary Vein – the blood vessel that carries newly oxygenated blood from the lungs to the heart (left atrium).

18. Left Atrium - the left upper chamber of the heart that receives blood from the pulmonary veins

19.  Left Ventricle – The largest and most muscular pumping chamber of the heart
Pumps oxygenated blood from the left atrium to the aorta

20. Good Afternoon! Please take out notes on circulatory system
Pick up a copy of the review questions on the circulatory system
Obtain a red and blue pencil.

21. Left
Right

22. Aorta - Main artery, which carries blood from the heart to all parts of the body.

23. How does the heart keep the blood flowing in one direction?
Valves - flaps of tissues or “doors" that prevent the backward flow of blood
Located between the chambers of the heart

24. How does the heart keep the blood flowing in one direction?
4 Valves
Tricuspid
Pulmonary Valve
Aortic Valve
Mitral Valve

25. How does the heart keep the blood flowing in one direction?
Tricuspid Valve - the valve between the right atrium and right ventricle

26. How does the heart keep the blood flowing in one direction?
Pulmonary Valve - allows blood to flow from the right ventricle into the pulmonary artery

27. How does the heart keep the blood flowing in one direction?
Aortic Valve - valve between the left ventricle and the aorta

28. How does the heart keep the blood flowing in one direction?
Mitral Valve - valve that lies between the left atrium and left ventricle

30. Pericardium
thin membrane that surrounds the heart

31. Trace the flow of blood as it moves throughout the circulatory system.

32. The End!
Review diagram

43. Aim: What is the structure and function of the blood vessels?
Do Now: List the three types of blood vessels.
Arteries
Veins
Capillaries

44. Arteries – Carries blood away from the heart Very muscular and elastic
Pulse is easily detected because the pressure is high
Carries Oxygen-rich (oxygenated) blood

45. Arteries – Carries blood away from the heart Very muscular and elastic
Pulse is easily detected because the pressure is high
Carries Oxygen-rich (oxygenated) blood

46. Arteries – Carries blood away from the heart Very muscular and elastic
Pulse is easily detected because the pressure is high
Carries Oxygen-rich (oxygenated) blood

47. veins

48. Veins – Thin blood vessels that carry blood towards the heart
Carries Oxygen-poor (deoxygenated) blood
Has valves which prevent the back flow of blood
Valves help to fight against the effects of gravity

49. Valves help to fight against the effects of gravity
Veins –
Thin blood vessels that carry blood towards the heart
Carries Oxygen-poor (deoxygenated) blood
Has valves which prevent the back flow of blood
Valves help to fight against the effects of gravity

50. Valves help to fight against the effects of gravity
Veins –
Thin blood vessels that carry blood towards the heart
Carries Oxygen-poor (deoxygenated) blood
Has valves which prevent the back flow of blood
Valves help to fight against the effects of gravity

51. Why are there valves in veins and not arteries?

52. Why are there valves in veins and not arteries?

53. Varicose Veins

56. Why is the artery colored red and the vein blue?

57. Capillaries

58. Capillaries – Tiny microscopic blood vessels that are one cell thick
carries blood from the artery to the vein
exchange of oxygen, carbon dioxide and nutrients by diffusion takes place here

59. Tiny microscopic blood vessels that are one cell thick
Capillaries –
Tiny microscopic blood vessels that are one cell thick
carries blood from the artery to the vein
exchange of oxygen, carbon dioxide and nutrients by diffusion takes place here

60. Tiny microscopic blood vessels that are one cell thick
Capillaries –
Tiny microscopic blood vessels that are one cell thick
carries blood from the artery to the vein
exchange of oxygen, carbon dioxide and nutrients by diffusion takes place here

61. Identify the following by labeling the diagram:
Artery
Vein
Capillary

63. Aim: What is Blood made of?
Do Now:
1. What is the scientific term for the liquid part of the blood.
2. List the type of cells that are in blood?

64. What is the scientific term for the liquid part of the blood. - plasma
2. List the types of cells that are in blood? - red blood cells -white blood cells -platelets

65. Created in the Bone Marrow
2. List the types of cells that are in blood? - red blood cells -white blood cells -platelets
Created in the Bone Marrow

66. Blood has ____ components (parts).
Plasma
Red blood cells
White blood cells
Platelets

67. Plasma The liquid part of the blood 90 % water, straw colored
Transports oxygen, wastes, nutrients, blood cells, end products of digestion, hormones, cellular excretions and antibodies
Helps to regulate body temperature
Helps to maintain homeostasis

68. Red Blood Cells (Erythrocytes)
RBC
Red round shaped circular cells that are indented in the center.
Has No Nucleus
Transports oxygen
It is red because of an iron containing protein called hemoglobin
Hemoglobin carries oxygen from the lungs to the body cells

69. Red Blood Cells (Erythrocytes)
Red round shaped circular cells that are indented in the center.
Has No nucleus
Transports oxygen
It is red because of an iron containing protein called hemoglobin
Hemoglobin carries oxygen from the lungs to the body cells

70. White Blood Cells Colorless cells that are a part of the immune system
Destroys germs, viruses, diseases and infections
Larger than red blood cells
*There are fewer white blood cells than red blood cells.
When infection is present the number of white blood cells increase.

71. White Blood Cells Colorless cells that are a part of the immune system
Destroys germs, viruses, diseases and infections
Larger than red blood cells
*There are fewer white blood cells than red blood cells.
When infection is present the number of white blood cells increase.

72. Platelets Tiny, colorless pieces of cells that help stop bleeding
They rupture/burst and release enzymes that help to form blood clots

73. platelets

74. Platelets Tiny, colorless pieces of cells that help stop bleeding
They rupture/burst and release enzymes that help to form blood clots

76. The End

77. Aim: What are some malfunctions of the Circulatory System?

79. Cardiovascular Disease
A dysfunction of the heart or blood vessels

80. Cardiovascular Disease
A dysfunction of the heart or blood vessels

81. Cardiovascular Disease
A dysfunction of the heart or blood vessels

82. Cause
Poor Diet – fatty foods
Not Exercising
Smoking

83. Anemia A lower than normal number of red blood cells.
Therefore, there is a low amount of hemoglobin
As a result, less oxygen is transferred to the cells

84. Anemia A lower than normal number of red blood cells.
Therefore, there is a low amount of hemoglobin
As a result, less oxygen is transferred to the cells

85. Anemia A lower than normal number of red blood cells.
Therefore, there is a low amount of hemoglobin
As a result, less oxygen is transferred to the cells

86. Anemia Treatment
Eat iron rich foods

87. Hypertension/High Blood Pressure
Blood pressure that is above the normal range.
A condition in which the blood circulates through the arteries with too much force

88. Hypertension/High Blood Pressure
Blood pressure that is above the normal range.
A condition in which the blood circulates through the arteries with too much force

89. Cause of Hypertension
Eating a lot of sodium (salt)
High Cholesterol

90. Angina Pectoris
Chest pain caused by narrowing of the artery and which leads to reduced flow of blood to the heart muscle.

91. Angina Pectoris
Chest pain caused by narrowing of the artery and which leads to reduced flow of blood to the heart muscle.

92. Cause of Angina Pectoris
Blood Clots
Anemia
Heart Attacks

93. Leukemia
Excess reproduction of white blood cells

94. Cause of Leukemia Unknown Researchers suspect that Radiation Chemicals
Genetics
Viruses

95. Heart Attack
Death or Damage to a region of the heart due to a lack of blood flow

96. Heart Attack
Death or Damage to a region of the heart due to a lack of blood flow

97. Heart Attack
Death or Damage to a region of the heart due to a lack of blood flow

98. Cause of Heart Attack An increase in arterial blood pressure
Oxygen deprivation of cardiac muscle
Narrowing of the arteries transporting blood to the heart muscle

99. Cause of Heart Attack An increase in arterial blood pressure
Oxygen deprivation of cardiac muscle
Narrowing of the arteries transporting blood to the heart muscle