Cardiovascular System Notes

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Cardiovascular System Notes

  1. 1. Cardiovascular System
  2. 2. 1. Functions of blood <ul><li>transports oxygen </li></ul><ul><li>transports nutrients </li></ul><ul><li>transports waste materials to the lungs and kidneys </li></ul><ul><li>regulates body temperature </li></ul><ul><li>fights disease </li></ul>
  3. 3. 2. Parts of blood <ul><li>rbc’s: carry oxygen using hemoglobin, a protein that contains iron </li></ul><ul><li>wbc’s: fight infection by finding and killing pathogens </li></ul><ul><li>platelets: cell fragments that cause blood to clot </li></ul><ul><li>plasma: liquid part of blood </li></ul>red blood cell white blood cell
  4. 4. 3. Parts of the heart <ul><li>see worksheet </li></ul>
  5. 5. 4. Blood flow through the heart and body right atrium right ventricle pulmonary artery lungs pulmonary veins left atrium left ventricle aorta smaller arteries capillaries small veins larger veins right atrium
  6. 6. 5. Two Types of Circulation <ul><li>Pulmonary circulation: blood flows from the heart to the lungs and back </li></ul><ul><li>Systemic circulation: blood flows from the heart to the rest of the body and back </li></ul>
  7. 7. 6. Comparing arteries, veins, & capillaries Away from Thick No High Distributes blood, carries O 2 and nutrients Towards Thin Yes Low Returns blood, carries CO 2 and other wastes Both Very thin No Low Exchanges O 2 and nutrients with cells, picks up CO 2 and wastes Function Pressure Valves Thickness of Walls Direction of Flow Capillary Vein Artery Type of Blood Vessel
  8. 8. What color is blood? <ul><li>http://en.wikipedia.org/wiki/Blood </li></ul><ul><li>http://www. madsci .org/posts/archives/apr2001/987619789. Gb .q.html </li></ul>

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