Quiz: Urethra

1. Under normal circumstances, how many urethrae exit the urinary bladder?
a. 1
b. 2
c. 3
2. The internal urethral sphincter is __________ and the external urethral sphincter is __________.
a. under involuntary control; under voluntary control
b. under voluntary control; under involuntary control
c. made of skeletal muscle; made of smooth muscle

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