Anatomy of the human seminal vesicles and ejaculatory ducts.

Anatomical dissections of the seminal vesicles and ejaculatory ducts were carried out in 20 autopsy and 10 operative specimens. Seminal vesiculography and casting were made. Vesiculography was conducted on 50 cases of schistosomal seminal vesiculitis. The seminal vesicles were of variable size and three main anatomical types. In normal seminal vesicles the ampullary vesicular angle was acute and the average length of the ejaculatory duct was 2.2 mm with an antero-medial concavity.