Ejaculatory duct obstruction must not be confused with an obstruction of the vas deferens.
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The terminal portion of the ejaculatory duct may be sclerotized to form the intromittent organ, the aedeagus.
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One of the possible underlying causes of low volume or complete lack of semen is ejaculatory duct obstruction.
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Due to the blockage of ejaculatory ducts, enlarged seminal vesicles are frequently seen in patients with ejaculatory duct obstructions.
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The ejaculatory duct is derived from an invagination of the epidermal cells during development and, as a result, has a cuticular lining.
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The testes each open into a relatively wide sperm duct and then into a glandular and muscular ejaculatory duct associated with the cloaca.
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The follicles connect to the vas deferens by the vas efferens, and the two tubular vasa deferentia connect to a median ejaculatory duct that leads to the outside.
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The third part of the duct system are the ejaculatory ducts which are one inch long paired tubes that pass through the prostate gland.
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Next, androgens cause the development of the Wolffian duct system, which develops into the vas deferens, seminal vesicles, and ejaculatory ducts.