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C IRCULATORY S YSTEM. Circulatory System: Organs and tissues that transport essential materials to body cells and remove waste products Blood is moved.

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Presentation on theme: "C IRCULATORY S YSTEM. Circulatory System: Organs and tissues that transport essential materials to body cells and remove waste products Blood is moved."— Presentation transcript:

1 C IRCULATORY S YSTEM

2 Circulatory System: Organs and tissues that transport essential materials to body cells and remove waste products Blood is moved through body by heart pumping – Picks up nutrients/drops off waste Blood travels in 3 Vessles: – Arteries Moves blood AWAY from heart – Veins Takes blood TO heart – Capillaries Tiny tubes that carry blood from the arteries to the body’s cells and then back to the veins

3 ONCE AGAIN: 1. ARTERIES CARRY BLOOD: ??? 2. VEINS CARRY BLOOD:??? 3. CAPILLERIES ARE: ???? We have over 80,000 miles of blood vessels throughout our body!!!!!!

4 2 Pathways of the Circulatory System : 1.Pulmonary Circulation -Flow of blood FROM heart TO lungs and back to heart Lungs -pulmonary arteries carry blood with CO2 away from heart -pulmonary veins carry O2 blood to heart 2. Systemic Circulation - Flow of blood to ALL other body tissue (except lungs)

5 4 Chambers of Heart Upper Chambers: Atriums Lower Chambers: Ventricles

6 BLOOD -Mixture of solids within a liquid-Plasma -Plasma -92% water -Transports blood solids, nutrients, hormones, and other materials -White Bloods Cells -Helps fight disease and infection by attacking germs that enter the body -Red Blood Cells -Carry oxygen to cells and carbon dioxide away from them -Platelets -Help blood form clot at site of wound -Seals a cut and prevents excessive blood loss

7 BLOOD PRESSURE -PRESSURE THAT IS EXERTED AS BLOOD MOVES THROUGH YOUR BODY AND AGAINST WALLS OF BLOOD VESSELS 1.Systolic Pressure -When BP is at HIGHEST point -As your heart contracts to push blood into arteries 2.Diastolic Pressure - When BP is at its LOWEST point

8 Blood Types Type A, B, AB, and O 1.Type A blood has substance A 2.B has substance B 3.AB has both substance AB 4.Type O has Neither (O- universal donor )

9 PROBLEMS of the Circulatory System Hypertension (blood pressure is higher than normal= heart attack, stoke, kidney failure) Stroke (blood clots block vessels in brain or rupture of blood vessel) Heart Attack (blockage of blood flow to heart) Arteriosclerosis (arteries harden reducing amount of blood flow allowed through) Anemia Leukemia Hemophilia

10 How to take Care of Circulatory System Limit fat in foods Get regular physical activity Avoid tobacco Manage Stress


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