Left Deferent Duct (Vas Deferens) (Ductus deferens sinister)
Educational content only — not medical advice.
Anatomy
The left deferent duct (vas deferens) is a thick-walled, cord-like muscular tube approximately 45 cm long that transports spermatozoa from the tail of the left epididymis to the ejaculatory duct. Ascending within the spermatic cord through the inguinal canal, it crosses the external iliac vessels and ureter to expand into the ampulla behind the bladder base before uniting with the seminal vesicle duct.
Clinical notes
Bilateral vasectomy is a highly effective, permanent surgical method of male contraception performed by transecting and occluding a short segment of the vas deferens in the upper scrotum.
Related structures
Educational references
FAQ
What is the role of the Left Deferent Duct (Vas Deferens)?
The left deferent duct (vas deferens) is a thick-walled, cord-like muscular tube approximately 45 cm long that transports spermatozoa from the tail of the left epididymis to the ejaculatory duct. Ascending within the spermatic cord through the inguinal canal, it crosses the external iliac vessels and ureter to expand into the ampulla behind the bladder base before uniting with the seminal vesicle duct.
Why is the Left Deferent Duct (Vas Deferens) clinically important?
Bilateral vasectomy is a highly effective, permanent surgical method of male contraception performed by transecting and occluding a short segment of the vas deferens in the upper scrotum.
Source & license
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