Which of the following statements is false?
A) Veins lack smooth muscle and elastic fibers.
B) Parasympathetic nervous system stimulation decreases heart rate.
C) Adjustments to blood flow result from stimuli from the nervous and endocrine systems and from changes in local chemicals.
D) Thrombin is an enzyme that acts on fibrinogen.
E) Hemostasis stops bleeding.
Correct Answer:
Verified
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