1. CV System Diseases

3. Atherosclerosis Inner lining of arteries become lined with plaque
Plaque – buildup of fatty substances
Think of water pipes freezing…Water is not able to get to where it needs to go!

4. Lets see what this looks like!
Atherosclerosis

5. Draw a picture depicting what atherosclerosis looks like….

6. How does this occur?
Poor Diet
Sedentary Lifestyle!

7. Coronary Artery Disease (Heart Disease)
Greatest killer of all CV diseases! Leads to heart attack!
How a heart attack happens:
1. In order to function, the heart has to have oxygen, thus it needs blood!
2. Blood (and O2) are delivered to the heart via coronary arteries
3. When these arteries become clogged, O2 cannot reach the heart and a heart attack may occur!

9. Coronary Heart Disease…
Think of it like this…
Coronary arteries are like the power cords to the heart. When the power is interrupted, the heart does not function properly

10. Signs of a Heart Attack Chest discomfort
Discomfort in other areas of the upper body
Shortness of breath
Other signs may include breaking out in a cold sweat, nausea or lightheadedness.

11. http://www.youtube.com/watch?v=mAqI- P6ig9Q

12. Congestive Heart Failure
Your heart is a big muscle (cardiac muscle)
CHF occurs when your muscle becomes overworked, and lacks strength

13. Congestive Heart Failure
Heart is not strong enough to pump blood to the rest of the body.
Blood pools and causes body/heart tissues to swell! This causes the congestion!

14. Think of it like this…
A sump pump! If that pump doesn’t get the water out from your basement, it will pool, creating a mess!

15. Congestive Heart Failure
CHF

16. Stroke Your brain needs O2 also!!!
Stroke occurs when blood flow is interrupted to the brain (clot in blood vessel)
When O2 does not reach the brain, brain cells die

17. Strokes Mild strokes may cause dizziness, weakness, or numbness.
However serious strokes causes speech impairments, memory problems, and loss of motor control.

18. Stroke
stroke

19. So… How do we avoid all these diseases!?
Avoid Tobacco!
Cut back on Saturated Fats and Cholesterol!
Maintain Healthy Weight!
Exercise Regularly!***
Manage Stress!
Aren’t you glad you have Health and PE!?!?!?!?

20. Heart disease can be hereditary
If your parents/grandparents had heart disease, you may be more likely to get it.

21. How can exercise help the heart?
Exercise makes the heart more efficient!
Exercise increases stroke volume – the amount of blood your heart pumps per contraction
Exercises decreases resting heart rate – amount of times your heart beats per minute while resting.
Exercise makes your heart’s life easier!!!