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Blood and lymphatic system. Do now. Review 33.2 Worksheet. Homework due today. Lab Questions Chapter 33.2 Worksheet. Homework Due tomorrow. Answer questions 1-3 on page 961. Plasma. 90% water 10% dissolved gases, salts, nutrients, enzymes, hormones, etc. Helps control body temperature

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do now
Do now
  • Review 33.2 Worksheet
homework due today
Homework due today
  • Lab Questions
  • Chapter 33.2 Worksheet
homework due tomorrow
Homework Due tomorrow
  • Answer questions 1-3 on page 961
plasma
Plasma
  • 90% water
  • 10% dissolved gases, salts, nutrients, enzymes, hormones, etc.
  • Helps control body temperature
  • Albumin, globulins, and fibrinogen
red blood cells
Red blood cells
  • Most numerous cells in blood
  • Transport oxygen
  • Get their color from iron in hemoglobin
    • Binds oxygen in the lungs
  • Produced by cells in red bone marrow
  • Circulate for average of 120 days
white blood cells
White blood cells
  • Also called, leukocytes
  • Guard against infection
  • Increased levels signify a fight against serious infection
  • Outnumbered by RBCs 1000 to 1
  • Can live for years
platelets
platelets
  • Plasma proteins and cell fragments
leeches
Leeches
  • Until mid 19th century, patients were bled by the use of leeches
  • In 2004, the FDA approved the use of leeches as a medical device
  • Must be limited to when blood needs to be taken from a specific area of tissue
    • Such as when blood needs to be drained from an area surrounded by damaged blood vessels
  • Leeches take blood but also release a chemical that inhibit clotting, increasing blood flow
  • Also numb the area while blood is drawn
blood transfusions
Blood Transfusions
  • First carried out in 1818
  • Work when blood types match
  • Can happen when blood types don’t match
homework due tomorrow1
Homework Due tomorrow
  • Answer questions 1-3 on page 961
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