Ductus deferens Vas deferens carries sperm from the testis to the ejaculatory ducts, which enter the prostatic urethra. For this function it has a lumen with appropriate pseudostratified or columnar epithelium, which is ciliated. It also has thick muscular coat. Its submucosa is formed by its thin lamina propria. Differential diagnosis: Vas can be confused with other small luminal organs like appendix, ureter bronchi or fallopian tube. Nevertheless, it is still considerably smaller and more muscular than all the above. |
|