The surgical procedure that interrupts sperm delivery by cutting and sealing the ductus deferens is called:

1. The ductus (vas) deferens is physically accessible within the scrotum, which allows a specific sterilization surgery. 2. This surgery cuts and seals a small section of the ductus deferens. 3. This procedure is called a vasectomy. 4. Circumcision is an unrelated procedure on the foreskin, so it is ruled out. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 27 "The Reproductive System", p.1285 §Duct System_