Blood vessel diameter is regulated by all of the following EXCEPTÂ ________.
A. nitric oxide
B. endothelin
C. bradykinin
D. platelet-derived growth factor
Answer: D
Anatomy & Physiology
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The vasomotor tone of blood vessels is mostly under sympathetic control
Indicate whether the statement is true or false
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Which mood-altering chemicals are released during massage that could have a profound effect on an individual with depression?
a. Serotonin. b. Estrogen. c. Adrenalin. d. Oxytocin.
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All four heart valves are closed during this time.
A. All of ventricular systole B. All of ventricular diastole C. Ventricular ejection D. Isovolumetric contraction
Anatomy & Physiology