Question 145 · LEK · Urinary incontinence
The phase of voiding the urinary bladder, initiated by the brain cortex is characterized by the relaxation of sphincter muscles surrounding the urethra and the increased tone of the detrusor muscle. These phenomena are caused by:
- A. inhibition of the sympathetic activity and the increased pulsation in the parasympathetic system.
- B. inhibition of the parasympathetic activity and the increased pulsation in the sympathetic system.
- C. increased pulsation in the somatic system innervating muscles of the pelvic floor.
- D. inhibition of the sympathetic activity only.
- E. inhibition of the parasympathetic activity only.
Hint
Recall which autonomic division contracts the detrusor via the pelvic nerves and which keeps the bladder neck closed during storage.
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