The process of preventing micturition in spite of initiation of the reflex involves
a. the cerebral cortex.
b. voluntary stimulation of the motor neuron supplying the external urethral sphincter.
c. voluntary stimulation of the internal urethral sphincter via its parasympathetic nerve supply.
d. both (a) and (b) above.
e. all of these answers.
D
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Which of the following structures normally controls the amount of light entering the eye?
a. ciliary muscle. b. suspensory ligaments. c. iris. d. cornea. e. lens.
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