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5 Written questions

5 Matching questions

  1. spleen, liver
  2. vascular spasm
  3. platelets
  4. dissolving
  5. 99
  1. a __ __ - reduces blood flow through injured vessel (narrow's vessel wall by closing diameter and reducing flow)
  2. b RBC cells (erythroycytes) die in the __ and __.
  3. c Plasmin is a proteolytic (breaks down proteins) enzyme that decomposes fibrin --> __ blood clots.
  4. d __ - cell fragments derived (broken off from) from large bone marrow cells (megakaryocytes)
  5. e Erythrocytes (RBC's) make up __ % of blood cells.

5 Multiple choice questions

  1. Blood cells make up __ % of the blood.
  2. When vessel is __, exposed collagen initiates a cascade of reactions involving successive activation of clotting factors.
  3. __ __ - aggregation of platelets quickly plugs defect as soon as they come in contact with __ in damaged vessel wall.
  4. Plasma proteins: are made by the __, exert __ __ in the capillaries, and help in __ __.
  5. __ __ (or blood coagulation) - reinforces platelet plug and converts blood in vicinity of injury to a non-flowing gell.

5 True/False questions

  1. negativeThe feedback system that controls more RBC's is a __ feedback system.


  2. bone marrowMost factors necessary for clotting are always present in plasma in inactive __ (they are always ready to go) form. They are triggered by exposed collagen.


  3. inactive precursorThe reason why you can get hemostasis to effect immediately is: most factors necessary for clotting are always present in the plasma in __ __ form.


  4. hemoglobinRBC's are packed full of __ - iron (Fe) containing molecule that can loosely, reversibly bind with O2.


  5. plasma, 45Blood cells are suspended in __ and account for __% of the blood volume.