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The external urethral orifice is the most contracted part of the urethra; it is a vertical slit, about 6 mm. long, bounded on either side by two small labia.
Additional images
Gray1228.png
Median sagittal section of male pelvis.
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External links
v • d • e Male reproductive system |
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| Scrotum | layers (skin, Dartos, External spermatic fascia, Cremaster/Cremasteric fascia, Internal spermatic fascia) • Perineal raphe • Spermatic cord |
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| Testes | layers (Tunica vaginalis, Tunica albuginea) • Appendix • Mediastinum • Lobules • Septa • Leydig cell • Sertoli cell • Blood-testis barrier |
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| Spermatogenesis | Spermatogonium • Spermatocytogenesis • Spermatocyte • Spermatidogenesis • Spermatid • Spermiogenesis • Spermatozoon |
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| seminal tract | Seminiferous tubules (Tubuli seminiferi recti, Rete testis, Efferent ducts) • Epididymis (Appendix) • Vas deferens (Ampulla) • Ejaculatory duct |
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| urinary tract | Internal urethral orifice • Urethra (Prostatic, Intermediate, Spongy, Navicular fossa) • External urethral orifice |
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| accessory glands | Seminal vesicles (Excretory duct of seminal gland) • Prostate (Urethral crest/Seminal colliculus/Prostatic utricle/Ejaculatory duct, Prostatic sinus/Prostatic ducts) • Bulbourethral glands |
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| Penis | root (Crus, Bulb, Fundiform ligament, Suspensory ligament) • body (Corpus cavernosum, Corpus spongiosum) • glans (Foreskin, Frenulum, Corona) • fascia (superficial/subcutaneous, deep/Buck\'s) • Tunica albuginea - Septum of the penis |
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This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia