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ATB. Why do people feel faint if they stand up too fast?. Circulatory System. Components : heart, blood vessels, lungs Functions : Transports nutrients, gases (carbon dioxide and O 2 ) , waste, water, hormones Distributes heat - PowerPoint PPT PresentationTRANSCRIPT
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ATB
Why do people feel faint if they stand up too fast?
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Circulatory SystemComponents: heart, blood vessels, lungs
Functions: 1. Transports nutrients, gases
(carbon dioxide and O2), waste, water, hormones
2. Distributes heat
Maintains homeostasis: maintains correct amounts of nutrients, gases, and wastes and correct temperature.
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Arteries vs. Veins- Arteries carry oxygenated blood from the heart to the body
- Veins carry blood towards the heart for purification.
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Blood Pressure
Blood pressure is the pressure exerted by circulating blood on the walls of blood vessels
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Heart Structure
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1. aorta
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava9. left pulmonary artery (to lungs)10. left pulmonary veins (from lungs)
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava9. left pulmonary artery (to lungs)10. left pulmonary veins (from lungs)11. left atrium
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava9. left pulmonary artery (to lungs)10. left pulmonary veins (from lungs)11. left atrium12. left atrioventricular valve13. aortic valve
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava9. left pulmonary artery (to lungs)10. left pulmonary veins (from lungs)11. left atrium12. left atrioventricular valve13. aortic valve14. left ventricle
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1. aorta2. superior vena cava3. right pulmonary artery (to lungs)4. right pulmonary veins (from lungs)5. right atrium6. right atrioventricular valve7. right ventricle8. inferior vena cava9. left pulmonary artery (to lungs)10. left pulmonary veins (from lungs)11. left atrium12. left atrioventricular valve13. aortic valve14. left ventricle15. abdominal aorta
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4. right pulmonary veins (from the lungs)
10. left pulmonary veins (from the lungs)
8. inferior vena cava (from the body)
3. right pulmonary artery (to the lungs)
9. left pulmonary artery (to the lungs)
Blood Flow in the Heart
15. abdominal aorta (to the body)
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Heart Rate LabObjectives1. Calculate your heart rate while laying,
sitting, standing, and after exercise.2. Compare your resting (sitting) heart rate
with the class average.
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What’s Your Heart Rate?
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What happens to heart rate during
exercise? WHY??
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Does being “in shape” influence your heart
rate?
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The Effect of Caffeine on Heart
Rate
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The Effect of Caffeine on Heart
Rate
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The Effect of Temperature on
Heart Rate
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The Effect of Temperature on
Heart Rate