Circulatory System Blood Regents Biology 2006 2007 Blood

Circulatory System Blood Regents Biology 2006 -2007

Blood & blood cells § Blood is a tissue of fluid & cells u __________ § liquid part of blood § dissolved salts, sugars, proteins, and more u __________ § ____________ w transport O 2 in hemoglobin § ____________ w defense & immunity § ____________ w blood clotting Regents Biology

Blood Cell production ribs, vertebrae, breastbone & pelvis § _____________ white blood cells _____________ _ u differentiate red blood into many cells different types of cells u Regents Biology white blood cells

Red blood cells § Small round cells ______________ u 5 liters of blood in body u 5 -6 million RBC in drop of human blood u ______________ u § _______________ § ~3 million RBC destroyed each second Regents Biology

Hemoglobin § _________________ u 250, 000 hemoglobins in 1 red blood cell O 2 Regents Biology O 2

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

Cardiovascular disease § Atherosclerosis & Arteriosclerosis u ______________________ § develop in inner wall of the arteries, narrowing their channel u u ___________________________________________ normal artery Regents Biology hardening of arteries

Cardiovascular health § Risk Factors _____________________ u § high animal fat u ___________ § smoking § lack of exercise Regents Biology bypass surgery

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

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

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