Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Quantium Medical Cardiac Output wikipedia , lookup
Cardiovascular disease wikipedia , lookup
Cardiac surgery wikipedia , lookup
Coronary artery disease wikipedia , lookup
Myocardial infarction wikipedia , lookup
Antihypertensive drug wikipedia , lookup
Dextro-Transposition of the great arteries wikipedia , lookup
Cardiovascular System The body’s transport system. Cardiovascular System 3 main parts: heart blood vessels blood 1. The HEART The pump that moves the blood through the body. brings O2 and food to cells removes cell wastes and CO2 from cells 1. The HEART Valves stop blood from flowing backwards. 1. The HEART Path of blood flow: Cells of the Body ↓ Right side of Heart ↓ Lungs ↓ Left side of the heart ↓ Cells of the Body 2. The blood vessels Artery – carries blood away from the heart RBCs carry O2 Vein – carries blood to the heart from the cells RBCs carry CO2 Capillary – connects arteries to veins – microscopic – where CO2 and O2 are exchanged 3. The blood Has several things in it: 3. The blood A. Plasma Liquid part of the blood 95% water Has dissolved food and body chemicals Blood cells float in the plasma 3. The blood B. Red blood cells (RBCs) Contains hemoglobin which holds onto the O2 or CO2 3. The blood C. White blood cells (WBCs) Seek and destroy invading organisms (bacteria) and particles (viruses) that could cause disease. 3. The blood D. Platelets Cell pieces that help blood clot and thus stop bleeding. 3. The blood E. Antibodies Chemicals that help WBCs identify foreign invaders 3½. Blood types A, AB, B, and O 4 Basic Blood Types Blood types are determined by what chemical (called an antigen) on the surface of the RBC. • • • • A = Has A antigen B = Has B antigen AB = Has A and B antigens O = has neither antigen TO MIX or NOT MIX Body makes antibodies against antigens that are not on its own RBCs Type A, antibody B can receive A, O Type B, antibody A can receive B, O Type AB, no antibodies can receive A, B, AB, O: universal recipient Type O, antibody A & B can receive O; universal donor DISEASES Cardiovascular diseases (“heart disease”) kill more Americans than any other disease. Data is for the U.S. in 2007 Number of deaths for leading causes of death Heart disease: 616,067 Cancer: 562,875 Stroke (cerebrovascular diseases): 135,952 Chronic lower respiratory diseases: 127,924 Accidents (unintentional injuries): 123,706 Alzheimer's disease: 74,632 Diabetes: 71,382 Flu and Pneumonia: 52,717 Kidney disease: 46,448 Septicemia: 34,828 Cause 1. Diseases of the heart Percent of Total 28.5 2. Malignant tumors 22.8 3. Cerebrovascular diseases 6.7 4. Chronic lower respiratory diseases 5.1 5. Accidents (unintentional injuries) 4.4 6. Diabetes mellitus 3.0 7. Influenza and pneumonia 2.7 8. Alzheimer's disease 2.4 9. Nephritis, nephrotic syndrome, and nephrosis 1.7 10. Septicemia (blood poisoning) 1.4 11. Suicide 1.3 12. Chronic liver disease and cirrhosis 1.1 13. Primary hypertension and hypertensive renal disease 0.8 14. Parkinson's disease (tied) 0.7 15. Homicide (tied) 0.7 DISEASES Cardiovascular diseases (“heart disease”) kill more Americans than any other disease. The major cause of heart diseases is Atherosclerosis“hardening of the arteries” when fatty deposits build up inside of blood vessels and block blood flow The big CVS killers, tied to atherosclerosis, are: 1. Heart attackan artery to the heart is blocked and cardiac muscle dies. 2. Strokea vessel in the brain is blocked or breaks open. 3. High Blood Pressure (hypertension)causes kidney or heart damage. Other killers are: 4. Leukemiaa cancer that stops RBC and WBC production 5. Hemophiliaa person can’t form blood clots (and can bleed to death easily)