What is tissue thromboplastin?
A.
A compound released by healed tissues that initiates clot dissolution
B.
A compound released by damaged tissue that initiates the extrinsic clotting pathway
C.
A compound that keeps platelets from sticking to the endothelium
D.
A precursor to prothrombin
E.
A compound released by damaged tissue that initiates the intrinsic clotting pathway
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Question 2) A severely dehydrated patient begins to experience the formation of random blood clots. Why is this happening?
A.
Dehydration leads to a concentration of clotting factors which triggers the extrinsic mechanism of coagulation
B.
Dehydration stimulates vasospasms which in turn lead to clot formation
C.
Dehydration collapses the capillaries and exposes collagen which triggers the extrinsic mechanism of coagulation
D.
Dehydration leads to a concentration of clotting factors which triggers the intrinsic mechanism of coagulation
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Question 3) The smallest leukocytes are the _____ and the largest are the ______.
A.
lymphocytes; monocytes
B.
basophils; neutrophils
C.
neutrophils; monocytes
D.
lymphocytes; neutrophils
E.
eosinophils; monocytes
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Question 4) The biconcave structure of an erythrocyte is shaped to better accommodate the crystalline structure of hemoglobin.
Indicate whether the statement is true or false.
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Question 5) All of the following describe ways that blood helps maintain homeostasis, except
A.
secretion of neuropeptides.
B.
stabilizing body fluids.
C.
transporting carbon dioxide.
D.
transporting nutrients.
E.
limiting the spread of pathogens.
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Question 6) The globulins are important plasma proteins that functions primarily in _______.
A.
hormonal regulation
B.
thermoregulation
C.
immunity
D.
gas transport
E.
pH control
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Question 7) Blood consists of a matrix of plasma and cells; blood is a subtype of ______ tissue.
A.
endothelial
B.
connective
C.
muscle
D.
epithelial
E.
nerve
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Question 8) All of the following are potential locations for hematopoiesis in the embryo and fetus, except
A.
the red bone marrow.
B.
the lymph nodes.
C.
the placenta.
D.
the spleen.
E.
the yolk sac.
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Question 9) An adult patient is brought into the emergency room of a local hospital. The EMTs report the patient lost about 300 cc (cubic centimeters or milliliters) of blood. Is this life-threatening?
A.
No; most adults have more than 7 liters of blood so a loss of 300 cc would not be life threatening
B.
Yes; 300 cc represents about 1/6 of the body's total blood volume of 2 liters
C.
Yes; 300 cc represents about 1/3 of the blood's volume
D.
No; most adults have 4-6 liters of blood so a loss of 300 cc would not be life threatening
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Question 10) Low blood oxygen levels stimulate erythrocyte production by increasing the formation of _________________ by the kidneys.
Fill in the blank(s) with the appropriate word(s).
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