What converts fibrinogen to fibrin?
A) thrombin
B) von Willebrand factor
C) plasmin
D) arachidonic acid
E) prostacyclin
Ans: A) thrombin
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Which of the following is NOT a characteristic commonly used to name skeletal muscles?
a) Size b) Shape c) Number of origins d) Sites of origins e) Thickness of fibers
Which of the statements below is an incorrect or false statement?
A) Transfusion of incompatible blood can be fatal. B) Unique to the ABO blood group is the presence in the plasma of preformed antibodies. C) Blood typing for the Kell, Lewis, and Duffy factors is always done before a blood transfusion. D) When a transfusion reaction occurs, the oxygen-carrying capacity of the transfused blood cells is disrupted and the clumping of RBCs in small vessels hinders blood flow to tissues beyond those points
Identify the arterial vessel that gives rise to all major arteries EXCEPT those that supply the lungs
A) aorta B) pulmonary trunk C) ligamentum arteriosum D) anterior vena cava E) celiac trunk
Incomplete tetanus
A. results in complete and incomplete tetanus. B. is the condition in which stimuli occur so rapidly that there are no intervening relaxations. C. is the constant tension produced by muscles for long periods of time. D. is the time during which the tissue cannot respond again. E. is the condition in which the muscle fiber only partially relaxes between contractions.