1. Cardiovascular System
Functions & Structure

2. SEPTUM Left Right Atrium Atrium Aortic Valve Tricuspid Valve Left
Mitral
Valve
Ventricle
Ventricle
Pulmonary Valve

3. SEPTUM To the body Aorta To Lungs To Lungs Superior Vena Cava
Pulmonary Artery
From Lungs
From Lungs
(to left atrium)
Left
Right
Atrium
Atrium
Aortic
Valve
Tricuspid Valve
Left
Right
SEPTUM
Mitral
Valve
Ventricle
Ventricle
Pulmonary Valve
Inferior
Vena Cava

4. Animations

5. Blood Vessels
Oxygenated Blood
DeoxygenatedBlood
Artery
Vein
Thinner,
Less Elastic Wall
Arterioles
Capillary
Bed
Venules
Thick,
Elastic &
Muscular Wall
Thin Wall

6. Muscle Pumping Effect Valve pushed apart by blood pressure
Muscle Belly
(Contracted)
Veins Squeezed by muscles
Blood cannot flow backwards as valve is CLOSED

7. Blood Red Blood Cells White Blood Cells Platelets 99% of Blood Cells
Variety of Shapes & Sizes
Larger than Red Blood Cells
Smaller than Red Blood Cells
Carry O2 & CO2 to and from cells
Pass through capillary walls
Fight Disease-Causing Organisms
Cause Blood to Clot when blood vessel is damaged
Produce in Bone Marrow
Removed by Liver & Spleen
Produce in the Bone Marrow
Life Span: 4 months
Life Span: Few Days

8. Plasma Clear, yellowish fluid Suspend blood cells
Passes through capillary walls and into cells
Provides cells with PROTEINS, SALTS, GLUCOSE, FATS, ANTIBODIES, O2

9. Haemoglobin Bright Red Appearance
Allows O2 to attach to Red Blood Cells
Bright Red Appearance
More Hb = More O2 = More Work Produced
Contains a large amount of Iron
The Role of Red Blood Cells in Anemia

10. Systemic Circulation

11. Pulmonary Circulation

12. Circulation of Blood 5 3 1 4 2 5

13. Blood Pressure Systolic Blood Pressure Upper Reading
Amount of pressure developed from AORTA to ARTERIES into
cells and muscles
Diastolic Blood Pressure
Low Reading
Pressure of blood in ARTERIES as the HEART RELAXES and
FILLS
Factors effecting blood pressure???

14. Factors that impact blood pressure
The exact causes of high blood pressure are not known, but several factors and conditions may play a role in its development, including:
Smoking
Being overweight or obese
Lack of physical activity
Too much salt in the diet
Too much alcohol consumption (more than 1 to 2 drinks per day)
Stress
Older age
Sleep Apnea
Genetics – family history of heart disease

15. Atherosclerosis

16. Atherosclerosis

17. Additional Study