Pelvis and Perineum — MCQs

Q: Which of the following structures is NOT found in the deep perineal pouch in males?

Long perineal nerve. The **deep perineal pouch** is a narrow space between the superior and inferior fascia of the urogenital diaphragm. Understanding its contents is a high-yield topic for NEET-PG. ### **Explanation of the Correct Answer** **C. Long perineal nerve:** This is the correct answer because it is **not** a resident of the deep pouch. The long perineal nerve (a branch of the posterior cutaneous nerve of the thigh) travels in the **superficial fascia** of the perineum to supply the skin of the scrotum. It does not pierce the perineal membrane to enter the deep compartment. ### **Analysis of Incorrect Options** * **A. Pudendal nerve:** The pudendal nerve enters the deep pouch via the pudendal (Alcock’s) canal. Within the pouch, it gives off its terminal branches. * **B. Sphincter urethrae:** This is the primary muscle of the deep perineal pouch. It surrounds the membranous urethra and is responsible for voluntary control of micturition. * **D. Dorsal nerve of penis:** This is one of the two terminal branches of the pudendal nerve. It traverses the deep pouch before piercing the perineal membrane to reach the dorsum of the penis. ### **High-Yield Clinical Pearls for NEET-PG** * **The "Rule of Two" for Male Deep Pouch:** It contains **two** muscles (Sphincter urethrae and Deep transverse perineal muscle) and **two** glands (**Bulbourethral/Cowper’s glands**). * **Note:** In females, the bulbourethral glands are absent; the equivalent (Greater vestibular/Bartholin’s glands) are located in the **superficial** pouch. * **Membranous Urethra:** This is the shortest and least dilatable part of the male urethra, located entirely within the deep pouch. * **Internal Pudendal Artery:** This artery also runs within the deep pouch, giving off the artery to the bulb and the deep/dorsal arteries of the penis.

Practice by Chapter

Pelvic Walls and Floor

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Pelvic Viscera

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Urogenital Organs

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Pelvic Vasculature

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Pelvic Innervation

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Male Perineum

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Female Perineum

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Pelvic Lymphatics

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Applied Anatomy and Clinical Correlations

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Gender Differences in Pelvic Anatomy

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