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3.2 The Circulatory System. Text book pages 68-70. Vocabulary:. Arteries Veins Capillaries Atria Ventricle. Circulatory system. Brings every cell oxygen No cell is m ore than 2 cells away from a blood vessel. WOW!!. We have 60 trillion cells (60, 000, 000, 000, 000). 1, 000, 000.

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3 2 the circulatory system

3.2 The Circulatory System

Text book pages 68-70

vocabulary
Vocabulary:
  • Arteries
  • Veins
  • Capillaries
  • Atria
  • Ventricle
circulatory system
Circulatory system
  • Brings every cell oxygen
  • No cell is more than 2 cells away from a blood vessel
slide6
WOW!!
  • We have 60 trillion cells (60, 000, 000, 000, 000)
wow wow
WOW WOW
  • We have 96 000 km of blood vessels (the earth is 40, 075.16 km around…. So that is MORE then twice around the earth!!
circulation
Circulation
  • Blood in vessels carry:
    • O2 and nutrient fluids to the cells
    • CO2 and waste away from cells
  • 3 main types of vessels:
    • Arteries: carry blood away from heart
    • Veins: carry blood to the heart
    • Capillaries: smallest vessel (size of 1 RBC)
our heart
Our Heart
  • 4 chambers
    • Two atria
      • Receive blood into heart
      • Top or heart
    • Two ventricles
      • Pumps blood away from hearth
      • Bottom of heart
      • Stronger, more muscular
flow of blood through the heart
Flow of blood through the heart:
  • Veins (deoxygenated blood from body)
  • Right atrium (RA)
  • Right ventricle (RV)
  • Lungs (get exchange CO2gas for O2gas at the alveoli)
  • Left atrium (LA)(oxygenated blood form lungs
  • Left ventricle (LV)
  • Aorta
  • Body
circulation song
Circulation song
  • http://www.youtube.com/watch?v=LqhvmUEdOYY&p=9C8E1219DB4742B9&index=21
a one way flow
A one-way flow
  • Valves = one way doors
    • Found between RA and RV, and LA and LV
    • Ventricles and arteries
    • In veins
our heart beat
Our heart beat
  • “LUBB” “DUBB”
  • “LUBB” = ventricles contracting and closing valves between Atria and Ventricles
  • “DUBB” valves closing between the arteries and the ventricles
heart beat animation http www youtube com watch v aoiyjnfb0as
Heart Beat animation: http://www.youtube.com/watch?v=AOiyjNFB0as
heart video
Heart video
  • http://www.youtube.com/watch?v=S3vY5oyXmeI
circulation song1
Circulation song
  • http://www.youtube.com/watch?v=LqhvmUEdOYY&p=9C8E1219DB4742B9&index=21
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