1. Circulatory Disorders & DiseasesPg
 Read…Read…Read 

2. The faster and stronger the heartbeat…. The higher the pressure
Blood Pressure
A measure of the amount of force that the blood places on the walls of BV as it is pumped through the body.
BP is highest in the arteries ( faster)
BP is lowest in the veins (slower)
The faster and stronger the heartbeat…. The higher the pressure

3. Blood Pressure 1st Reading: Systolic Pressure
Heart ventricles contracts to push blood into your arteries… maximum pressure
2nd Reading: Diastolic Pressure
Heart ventricles relax to refill, BP is at its lowest.
Systolic 110/70  120/80 Normal
Diastolic

4. Nerve cells die w/o O2 supply.
ATHEROSCLEROSIS
A condition where fatty material builds up on the inner walls of arteries & blocks the flow of blood.
Nerve cells die w/o O2 supply.

5. CHOLESTEROL
Cholesterol is a waxy, fat-like material that is found in all parts of the body.

6. What Happens If The Blockage Is Not Treated?1.
Fatty material con’t to build up, & blood flow decreases. 2.
Eventually, tissue nourished by the arteries DIES from inadequate blood supply.

7. Heart Attack
The blood supply to part of the Heart is suddenly cut off, killing the muscle tissue in that area.
Pg. 314

8. Hypertension
Blood Pressure that remains too high for long periods of time.
Caused By:
Narrowing & Hardening of the Arteries
The Heart must work harder to pump blood, which increases BP.
Can do damage to Heart, BV, and organs.
Artery walls weakened by high BP, rupture can occur.
Blood leaks out of Artery, presses on nerve tissue, killing the cells.

9. Hereditary Risk Factors
Hypertension
Hereditary Risk Factors
Being Male
Being of African Descent
Close relatives with it
Health Risk Factors
Smoking Tobacco
Not enough exercise
Too much Sodium & Sat. fat
> 2 alcoholic drinks daily
Being overweight

10. Atherosclerosis & Hypertension can lead to a Stroke
A sudden disruption of blood supply to part of BRAIN, killing nerve tissue in that area.
Atherosclerosis & Hypertension can lead to a Stroke

11. Effects Of A Stroke
Depending of the area damaged many effects can occur.
Paralysis of body parts.
Loss of Speech or Understanding of Speech.

12. S *Ask the individual to SMILE. R *Ask him or her to RAISE BOTH ARMS.
RECOGNIZING A STROKE Dr’s say a bystander can recognize a stroke by asking 3 simple questions:
S *Ask the individual to SMILE.
T *Ask the person to TALK . to SPEAK A SIMPLE SENTENCE (Coherently) (i.e. . . It is sunny out today)
R *Ask him or her to RAISE BOTH ARMS.

13. Preventing Circulatory Diseases
Avoid Cigarette Smoking
Eat a Healthy Diet
Exercise Regularly
Avoid Alcohol
Avoid Being Overweight

14. Congenital Heart Defects
Open your textbook to Pg. 425 and research the vocab below… DEFINE, CAUSED BY, TREATMENT.
Congenital Heart Defects
Heart Murmur
Varicose Veins
Anemia
Leukemia
Hemophilia

15. Congenital Heart Defects
A condition that is present at birth.
Septal Defect, Faulty Valves, or
Aorta abnormally narrow
CAUSED BY
Many cases unknown
Alcohol / Drugs during pregnancy
Infections during pregnancy
Heredity
TREATMENT
Medication & Surgery
Pg 425

16. Abnormal sounds made as blood flows through heart.
Heart Murmur
Abnormal sounds made as blood flows through heart.
Caused by
Problems within the heart
Faulty Valves
Treatment
Slight one may disappear w/o treatment.
More severe require surgery
Pg 425

17. Varicose Veins
Form when valves in veins don’t close tightly enough to prevent backflow of blood.
Caused by
Congenital defects
Natural aging
Treatment
Physical Activity
Reduce standing time
Elevating legs when sleeping
Surgery for removal
Pg 425

18. Anemia
Blood doesn’t have enough RBC or Hemoglobin to carry an adequate supply of O2.
Caused by
Dietary deficiencies (Iron)
Low RBC # or Low Hemoglobin
Inherited
Pg 426

19. Leukemia
Cancer in which any one of the different types of WBC is produced excessively & abnormally.
Caused by ???
Treatment
Childhood Leukemia often curable
Adult Leukemia can go into remission
Chemotherapy & Radiation
Bone marrow transplants
Pg 426

20. Hemophilia
An inherited disorder where the blood doesn’t clot properly.
Caused by
Genetic make-up
Treatment
Injections that introduce the missing clotting factors into the blood.
Factors can be extracted from blood donated by healthy individuals.

21. Mononucleosis
Viral infection that causes abnormal increase in certain WBC.
No Cure, body will cure itself