The effects of sympathetic stimulation of the iris are:
A. vasoconstriction
B. relaxation (for far vision)
C. contraction of the circular muscle and pupil constriction
D. contraction of the radial muscle and pupil dilation
d
Rationale: Effects of sympathetic stimulation on the iris include contraction of the radial muscle and pupil dilation (mydria-sis).
Health Professions
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Which gas law states that the total pressure exterted by a mixture of gases is equal to the sum of the pressures exerted by each gas in the mixture?
a. Boyle's c. Dalton's b. Graham's d. Henry's
Health Professions
Which of the following is the apothecary equivalent to 30 mL?
A. 1 fluid dram B. 1 tablespoon C. 1 pint D. 1 liter E. 1 fluid ounce
Health Professions