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Circ And Resp System 07


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Circ And Resp System 07

  1. 1. Chapter 37.2 – The Circulatory System The Heart and Blood
  2. 2. Function <ul><li>Provides the force to distribute ____ blood ____ to and from the cells </li></ul>
  3. 3. Organs of the Circulatory System <ul><li>Heart – main organ of the circulatory system </li></ul><ul><ul><li>Functions in pumping the blood to and from the lungs for gas exchange </li></ul></ul><ul><ul><li>Covered by pericardium – thin TOUGH__ membrane </li></ul></ul><ul><ul><li>Muscular organ that contracts to force blood through the vessels </li></ul></ul><ul><ul><li>____ atria – receive blood from body or lungs (top of heart) </li></ul></ul><ul><li>--____ ventricles – send blood to body or lungs (bottom of heart </li></ul>
  4. 4. Blood – carries food and oxygen to the cells and removes the wastes from cells <ul><ul><li>Solid part of blood: </li></ul></ul><ul><ul><ul><li>Red blood cells (__RBC__) – carry oxygen from the lungs and carry carbon dioxide to the lungs </li></ul></ul></ul><ul><ul><ul><li>White blood cells (__WBC__) – destroy bacteria and help repair tissue </li></ul></ul></ul><ul><ul><li>Liquid part of blood: </li></ul></ul><ul><ul><ul><li>Plasma – made up of proteins and dissolved salts in water </li></ul></ul></ul>
  5. 5. Blood Vessels – channels that blood passes through <ul><ul><li>___ARTERIES_ – carry oxygenated blood away from the heart </li></ul></ul><ul><ul><li>____VEINS___ – carry deoxygenated blood to the heart </li></ul></ul>
  6. 6. CAPILLARIES – connect the arteries and vein
  7. 7. Aorta Pulmonary veins Right Atrium Right Ventricle Pulmonary veins Left Atrium Left Ventricle
  8. 8. Chapter 37.1 – The Respiratory System How We Breathe!
  9. 9. Respiration <ul><li>Provides our cells with __OXYGEN____and rids our cells of carbon dioxide. </li></ul><ul><li>Pathway of Air </li></ul><ul><li>Nose or mouth  pharynx or throat  larynx  trachea  bronchi  bronchioles  lungs with alveoli </li></ul>
  10. 10. <ul><li>Alveoli – the place of gas exchange thousands of thin-walled sacs where oxygen and carbon dioxide are exchanged by __diffusion____ with the _circulatory_system </li></ul>
  11. 11. Nose Larynx Mouth Lung Right Bronchi Diaphragm Pharynx Trachea Left Bronchi Bronchioles Alveoli