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Exam 11: The Blood

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Question 21

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Myeloid stem cells give rise to all leukocytes except

A) neutrophils
B) eosinophils
C) basophils
D) lymphocytes
E) monocytes

F) None of the above
G) A) and B)

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Question 22

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Match each hemostasis step with the correct characteristic. a.Converts fibrinogen to fibrin b.When platelets come into contact with this substance in an injured vessel wall, it causes them to adhere and aggregate c.When activated, this substance digests the fibrin threads, causing dissolution of the clot d.Substance released by the platelet plug that causes more platelets to aggregate e.First step in hemostasis f.Forms the meshwork of the clot g.Plasma protein activated by factor X h.Second step in hemostasis i.Released from injured tissues; activates extrinsic clotting pathway j.Third step in hemostasis -Fibrin

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Question 23

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Most of the old erythrocytes are removed from the circulation as they rupture, passing through the narrow capillaries of the ____________________ (specific organ).

The order of development of an erythrocyte is as follows: pluripotent stem cells give rise to _________ cells, which give rise to _______, which give rise to ________, which finally give rise to erythrocytes.

Polycythemia can occur in association with chronic lung disease.

Which of the following is not a function of thrombin?

Of the cells identified with numbers 4-12, which type is the most abundant in the blood?

What forms the meshwork of a clot?

____________________ anemia results from the failure of the bone marrow to produce sufficient numbers of red blood cells.

Which of the following is not a plasma protein?

Which plasma globulins are the antibodies?

Only Rh-negative individuals produce anti-Rh antibodies.

Match each hemostasis step with the correct characteristic. a.Converts fibrinogen to fibrin b.When platelets come into contact with this substance in an injured vessel wall, it causes them to adhere and aggregate c.When activated, this substance digests the fibrin threads, causing dissolution of the clot d.Substance released by the platelet plug that causes more platelets to aggregate e.First step in hemostasis f.Forms the meshwork of the clot g.Plasma protein activated by factor X h.Second step in hemostasis i.Released from injured tissues; activates extrinsic clotting pathway j.Third step in hemostasis -Vascular spasm

The percentage of whole blood occupied by erythrocytes, known as the ____________________, is normally ____________________ (greater than, less than) the plasma volume.

The tissue phagocytes called macrophages are derived from

Which statement about erythrocytes is incorrect?

Which organ removes most of the worn-out red blood cells from the circulation?

Detail the life cycle of an erythrocyte, including: (1) specific cells from which they are derived, (2) site of development, (3) name and source of chemicals that stimulate their production, and (4) length of life span and why this life span is limited.

Define hemostasis and describe its three phases.

By far, the most abundant cellular elements in the blood are the ____________________.