Lecture: chp 18

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Author:
edeleon
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288736
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Lecture: chp 18
Updated:
2014-11-12 01:19:58
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bio120 blood
Folders:
Exam 4
Description:
Leture notes only of chapter 18 (11/6/14)
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  1. What 3 things are included in the cardio vascular system?
    • blood
    • heart
    • blood vessels
  2. The role of this "system" contains vessels that return interstitial fluid back to the blood
    lymphatic system
  3. What 6 things does blood transport/carry?
    • oxygen
    • carbon dioxide
    • nutrients
    • waste
    • hormones
    • immune cells
  4. Other than carry/transport molecules, what else can blood do?
    Can also regulate body temperature by being diverted to or from the skin
  5. What is the average volume of blood in liters in the average man and woman?
    • women: 4-5L
    • men: 5-6L
  6. This is another name for red blood cells (RBC)
    ERYTHROCYTES
  7. What can prevent blood clotting?
    anticoagulants
  8. When blood is centrifuging it seperates into these 3 components
    • Plasma
    • Buffy coat
    • erythrocytes
  9. This part of blood when its centrifuged consists of leukocytes (wbc) and platelets (thrombocytes)
    buffy coat
  10. This term refers to the % of blood volume that consists of red blood cells.
    Hematocrit
  11. This is a yellowish fluid, is 90% water, and contains numerous different molecules (sodium, chloride, sugars, amino acids, lipids, urea)
    Plasma
  12. What are the 3 main types of protein in plasma?
    • albumin
    • fibrinogen
    • globulins
  13. this protein in plasma transports fatty acids and maintains osmosis, so water stays in the blood
    albumin
  14. this protein in plasma is a clotting factor.
    fibrinogen
  15. What is the active form of this protein in our blood when someone has a cut?
    fibrin
  16. This plasma protein in our blood are round proteins for transporting lipids, iron, coppper, and fat soluable vitamins, including antibodies.
    globulins
  17. Our body contains 25 trillion of these.  (2 names)
    RBC or erythrocytes
  18. erythrocytes or RBCs are small and carry ______ and _____.
    oxygen and carbon dioxide
  19. What is the name of depression in this RBC and what are its benefits?
    biconcave discs: it gives mor surface area for oxygen and carbon dioxide to cross over the membrane
  20. T or F: RBCs have no nucleus
    true
  21. The name of this is when a mature RBC is ready to enter the blood and ejects its nucleus and almost all of its organelles
    nuclear cell
  22. T or F: mature RBCs cannot make proteins
    true
  23. What is the life span of a RBC?
    120 days
  24. RBCs lacks the organelle, ___a___, meaning it goes through ___b___ . This way it does not use the oxygen it carries.
    • a) mitochondria
    • b) anaerobic glycolysis
  25. RBCs carry 300 mllion of these molecules
    hemaglobin
  26. List the things that are in hemaglobin:
    a) 4 ________ (split into 2 _____ and 2 _____)
    b) 4 ________
    c) 4 ________
    • a) 4 protein subunits (2 alpha, 2 beta)
    • b) 4 heme groups
    • c) 4 oxygen molecules within the heme group
  27. when oxygen is bound to hemoglobin, it is called this and is in the color red.
    oxyhemoglobin
  28. What vitamin and folate are important for cell division?
    b12 vitamins and folic acid (folate)
  29. For RBC poduction, what 3 things must our body consume? Which of the 3 is needed for the hemegroup?
    • b12 vitamins
    • folic acid folate
    • iron <-- needed for heme group
  30. Complete this step by step production of RBC
    1. Food consumption
    2. 
    3. Enters red bone marrow
    4.
    5. Old RBCs are broken down in the ____ and ____ by macrophages
    • 1. Food consumption
    • 2. ABSORPTION OF NUTRIENTS INTO BLOODSTREAM
    • 3. enters red bone marrow
    • 4. RBC ENTERS BLOOD STREAM FOR 120 DAYS
    • 5. Old RBCs ar broken down in the LIVER and SPLEEN by macrophages
  31. When our hematocrit is at 30%, we are considered ____? What % is considered anemia?
    • Anemic (anemia) = <45%
  32. What is the abnormality when our hematocrit % in blood is 70%? What are some of the factors that cause this?
    • Polycythemia: 
    • a) overactive stem cells
    • b) tumor in bone marrows or kidneys
    • c) high altitude
  33. What abnormalitty can this hematocrit level cause?
    dehydration

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