Science.txt

Card Set Information

Author:
mgurney
ID:
111481
Filename:
Science.txt
Updated:
2011-10-23 17:37:21
Tags:
Chapter 13 Blood
Folders:

Description:
Chapter 13 Blood
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user mgurney on FreezingBlue Flashcards. What would you like to do?


  1. 3 Functions of Blood
    • 1. Transportation of gases, nutrients, wastes & hormones
    • 2. Regulation of pH (7.35-7.45), fluid in the tissues, heat
    • 3. Protection against disease, blood loss
  2. Composition of blood
    • 55% plasma (liquid portion of blood w/ all dissolved substances)
    • 45% formed elements (blood cells)
  3. 3 types of blood proteins dissolved in plasma
    • 1. Albumin *major blood protein made by liver*
    • 2. Gamma globulin & other antibodies made by B cells
    • 3. Clotting factors fibrinogen & prothrombin made by liver
  4. Plasma is made up of over 90% __________
    Water
  5. Serum is blood plasma minus __________
    Clotting factors
  6. 3 Components of Formed Elements or Cells
    • 1. RBCs (erythrocytes) = 4.5-5 million/mm3
    • 2. Platelets (thrombocytes) = 150-450,000/mm3
    • 3. WBCs (leukocytes) = 5-10,000/mm3
  7. 2 Functions of Erythrocytes (RBCs)
    • 1. Transport oxygen to all body cells (oxygen + hemoglobin = oxyhemoglobin)
    • 2. Transport carbon dioxide from the cells to the lungs to get eliminated
  8. Polycythemia
    Too many erythrocytes (RBCs) = greater than 5 million/mm3
  9. Anemia
    Too few erthrocytes (RBCs)
  10. Erythrocytes (RBCs)
    • Tiny, disc shaped
    • Mature RBCs have no nucleus
    • 4.5-5 million/mm3
    • Men have more than women
    • Average life span of 120 days
  11. Leukocytes (WBCs)
    • Round, contain nuclei
    • 700 RBC to every 1 WBC
    • 5-10 thousand/mm3
    • Can live 6-8 hours in blood, some longer in tissues
    • Divided into granulocytes & agranulocytes
  12. When stained, granulocytes __________ stain in cytoplasm
    keep
  13. When stained, agranulocytes __________ stain in cytoplasm
    do not keep
  14. 3 types of granulocytes
    • 1. Neutrophils (polys) - phagocytes, fight infection, most numerous of WBCs approx. 60%
    • 2. Eosinophils - role in allergies, defense against parasites
    • 3. Basophils - role in allergies, inflammation
  15. 2 types of agranulocytes
    • 1. Lymphocytes (T cells & B cells) - chief warriers of immune system, 2nd most numerous of WBCs
    • 2. Monocytes - phagocytes, macrophages
  16. Leukocytosis
    Too many WBCs
  17. Leukopenia
    Too few WBCs
  18. 3 Functions of Leukocytes
    • 1. Protect against pathogens
    • 2. Destroy foreign matter & debris
    • 3. Some active in immune system
  19. Thrombocytes (platelets)
    • Colorless unless stained
    • Not cells, but cell fragments
    • 150-450 thousand/mm3
    • Lifespan of 10 days
    • Function: control bleeding
  20. Thrombocytosis
    Too many platelets (risk for blood clots)
  21. Thrombocytopenia
    Too few platelets (not able to clot properly, risk of hemorraging)
  22. Blood is one of the 2 vital circulating fluids of the body, the other is __________
    Lymph
  23. Blood is classified as __________ tissue.
    Connective

What would you like to do?

Home > Flashcards > Print Preview