The urinary bladder
A)contains only skeletal muscle.
B)receives urine from two urethras.
C)causes diuresis in response to ADH deficiency.
D)causes micturition when the detrusor muscle contracts and the internal sphincter relaxes.

Question

Quizplus · Accepted Answer

The detrusor muscle contracts and the internal sphincter relaxes during micturition, allowing urine to flow out of the bladder through the urethra. None of the other options are accurate. The bladder contains smooth muscle, not skeletal muscle; there is only one urethra that drains the bladder; and diuresis occurs as a result of excessive ADH, not its deficiency.

The Urinary Bladder