cv system diseases. 1. atherosclerosis inner lining of arteries become lined with plaque plaque –...

CV System Diseases

1. 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!

Lets see what this looks like!

•Atherosclerosis

Draw a picture depicting what atherosclerosis looks like….

How does this occur?

•Poor Diet

•Sedentary Lifestyle!

2. 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!

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

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.

•CHD•http://www.youtube.com/watch?v=mAqI-

P6ig9Q

3. Congestive Heart Failure•Your heart is a big muscle (cardiac

muscle)•CHF occurs when your muscle becomes

overworked, and lacks strength

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!

•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!

Congestive Heart Failure

•CHF

4. 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

Strokes

•Mild strokes may cause dizziness, weakness, or numbness.

•However serious strokes causes speech impairments, memory problems, and loss of motor control.

Stroke

•stroke

PROBLEMS

•5. VERICOSE VEINS - Swollen and enlarged veins caused by weak valves

Problems6.6.

Anemia: decrease in number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in the blood.

7. Hemophilia- blood does not clot

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!?!?!?!?

•Heart disease can be hereditary•If your parents/grandparents had heart

disease, you may be more likely to get it.

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!!!