Musculus compressor nuda
Musculus compressor nuda is a small striated musculotendinous sling of the bulbocavernosus muscle, which extends from the anterior and lateral surfaces of the proximal bulbous urethra.
Musculus compressor nuda causes the proximal bulbous urethra to form a symmetric convex cone shape where the tip of the cone is the point at which the bulbous urethra enters the urogenital diaphragm and continues as the membranous urethra.
Radiographic features
Fluoroscopy
It may indent the proximal bulbous urethra on retrograde urethrogram and rarely on a micturating cystourethrogram. This structure should not be mistaken for a urethral stricture.
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Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
- abdominal cavity
- pelvic cavity
- perineum
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endocrine system
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adrenal gland
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adrenal gland
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urinary system
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kidney
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variants
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- embryology
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kidney
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female reproductive system
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- broad ligament (mnemonic)
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abdominal aorta
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common iliac artery
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internal iliac artery (mnemonic)
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abdominal aorta
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- innervation of the abdomen and pelvis
- lumbar plexus
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sacral plexus
- lumbosacral trunk
- sciatic nerve
- superior gluteal nerve
- inferior gluteal nerve
- nerve to piriformis
- perforating cutaneous nerve
- posterior femoral cutaneous nerve
- parasympathetic pelvic splanchnic nerves
- pudendal nerve
- nerve to quadratus femoris and inferior gemellus muscles
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