Blood and lymphatic system
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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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Blood and lymphatic system

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Blood and lymphatic system

Blood and lymphatic system


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


What is this

What is this?


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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