Assertion: seminal vesicle | /r/MadeOf | spermatozoa
Facets:
Source sentences:
text: If the seminal-vesicles contain spermatozoa, but the semen does not, the obstruction must be downstream of the seminal vesicles and the ejaculatory ducts are very likely to be obstructed, provided that other causes for a dry ejaculation/aspermia such as a retrograde ejaculation are ruled out.