Multiple choice

Inhibition of which of the following nerves helps the opening of external urethral sphincter to facilitate micturation?

  1. Pudendal nerve

  2. Phrenic nerve

  3. Urethral nerve

  4. Sciatica nerve

  5. Hypogastric nerve

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A Correct answer
Explanation

Pudendal nerve is the parasympathetic supply to the external urinary sphincter and continuously maintains its closure. Its inhibition thus causes the opening of external sphincter and facilitate voluntary micturation.