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Circulatory System

Learn how the circulatory system carries vital materials, the anatomy of the heart, blood pathway details, pulse activity, and blood composition breakdown.

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Circulatory System

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  1. Circulatory System

  2. Main Function • Carries oxygen from lungs to cells • Carries carbon dioxide from cells to lungs • Carries nutrients from intestines to cells • Carries cellular wastes from cells to kidneys

  3. Main Parts • Heart • the pump • Blood • fluid in which materials are transported • Vessels • tubes to carry the blood

  4. Types of Blood vessels • Arteries • Carry blood away from the Heart • Veins • Carry blood into the Heart • Capillaries • Connect arteries to veins • Gas exchange, drops off O2, picks up CO2

  5. Parts of the heart • Atria(or Atriums) • Receiving chambers • Ventricles • Pumping chambers • Valves • Prevents backflow • Septum • Divides the Heart

  6. ANATOMY OF THE HEART

  7. PATHWAY OF BLOOD • We're going to make a list of the structures that a red blood cell would pass through when moving in and out of your heart. • Start at the lungs and end at the lungs

  8. PATHWAY OF BLOOD • Lungspicks up oxygen • Pulmonary Vein into the heart • Through the Left Atrium and Ventricle pumped tobody • Aorta-major artery out of heart • Arteriespath through body • Capillariesdestination ofoxygen, carbon dioxide is picked up

  9. Pathway of Blood • Veinstake deoxygenatedblood back to the heart • Vena Cava's "blue" blood enters the heart • Through the Right Atriumand Ventricle pumped tolungs • Pulmonary Artery"blue" blood heads to lungs • Lungs-Drops off carbon dioxide

  10. Activity • Pulse: • the beating of the heart that can be felt by pressing on an artery. • Pulse rate: • measurement of how fast the heart is beating

  11. blood

  12. Composition of Blood • The Plasma (Fluid) makes up 55% of the blood volume. • The Solids (Cells) make up 45% of the blood volume

  13. Blood Plasma • 97% Water • 3% Other • Antibodies and Proteins • Nutrients and Wastes

  14. Blood Solids • Red Blood Cells • Carry oxygen • Contain Hemoglobin • White Blood Cells • Attack bacteria & other invaders • Platelets • Control the blood clotting process

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