Final answer:
The spermatic cord enters the abdominal cavity through the Inguinal Canal. The vas deferens, part of the spermatic cord, carries mature sperm from the epididymis through this passageway.
Step-by-step explanation:
The spermatic cord enters the abdominal cavity through a tubular passageway called the Inguinal Canal. After leaving the epididymis where sperm mature, they pass through the ductus deferens, also known as the vas deferens. The ductus deferens forms part of the spermatic cord and carries sperm from the epididymis, moving superiorly into the abdominal cavity through the inguinal canal. A vasectomy, a form of birth control, involves the removal of a section of the vas deferens, thereby preventing the transport of sperm to the ejaculatory ducts.