2. Regents Biology 2006-2007 Circulatory System Blood

3. Regents Biology Blood & blood cells  Blood is a tissue of fluid & cells  ____________________  liquid part of blood  dissolved salts, sugars, proteins, and more  ____________________  _______________________  transport O 2 in hemoglobin  _______________________  defense & immunity  _______________________  blood clotting

4. Regents Biology  ______________  _____________ _____________ _____________ _____________  differentiate into many different types of cells Blood Cell production ribs, vertebrae, breastbone & pelvis white blood cells red blood cells white blood cells

5. Regents Biology Red blood cells  Small round cells  ___________________________  5 liters of blood in body  5-6 million RBC in drop of human blood  ___________________________  ______________________________  ~3 million RBC destroyed each second

6. Regents Biology Hemoglobin  _________________________________  250,000 hemoglobins in 1 red blood cell O2O2 O2O2 O2O2 O2O2

7. Regents Biology Blood clotting protein fibers build the clot emergency repair of circulatory system platelets seal the hole chemical emergency signals

8. Regents Biology Cardiovascular disease  Atherosclerosis & Arteriosclerosis  ___________________________________________  develop in inner wall of the arteries, narrowing their channel  ___________________________________________  ___________________________________________ ___________________________________________ normal arteryhardening of arteries

9. Regents Biology Cardiovascular health bypass surgery  Risk Factors  _____________________  high animal fat  _____________________  smoking  lack of exercise

10. Regents Biology Heart Disease Heart disease death rates 1996-2002 Adults ages 35 and older

11. Regents Biology Women & Heart Disease  Heart disease is 3rd leading cause of death among women aged 25–44 years & 2nd leading cause of death among women aged 45–64 years. Risk factors  Smoking  Lack of exercise  High fat diet  Overweight Death rates for heart disease per 100,000 women, 2002

12. Regents Biology 2006-2007 Have a heart? Ask Questions!!