sperm canal

anatomy

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July 22, 2026

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The "sperm canal" is formed by the epididymis, ductus deferens (vas deferens), and ejaculatory ducts. These structures transport sperm from the testes to the urethra. Sperm mature and are stored within the epididymis, which has a head, body, and tail. The ductus deferens, a continuation of the epididymis, has a thick muscular coat that aids in sperm propulsion through peristaltic contractions. The seminal vesicle joins the ductus deferens to form the ejaculatory duct, which then empties into the urethra. These organs, along with the testes and accessory glands, constitute the male reproductive system, responsible for sperm production, maturation, transport, and the formation of semen.12

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human reproductive system
Structures of the sperm canal
The epididymis, ductus deferens (or vas deferens), and ejaculatory ducts form the sperm canal. Together they extend from the testis to the urethra, where it lies within the prostate. Sperm are conveyed from the testis along some 20 ductules, or small ducts, which pierce…
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The epididymis, ductus deferens (or vas deferens), and ejaculatory ducts form the sperm canal. Together they extend from the testis to the urethra, where it lies within the prostate. Sperm are conveyed from the testis along some 20 ductules, or small ducts, which pierce…
Read More