at the moment of ejaculation, the thick layers of smooth muscle in the ductus deferins create strong peristaltic waves that rapidly squeeze the sperm forward along the tract and into the urethra. (Human Anatomy and Physiology,8th edition, Marieb & Hoehn)
peristaltic contraction
Vas deferens
It propels sperm into the urethra during ejaculation. "Ductus Deferens" is also called as "Vas Deferens"
They aren't stored after they leave the epididymis, they are ejaculated.
Peristaltic Contractions
vas deferens or ductus deferens
Epididymis > ductus deferens > ejaculatory duct > urethra.
There is no ampulla of ductus deferens in pigs
The epididymus leaves the testies and connects ot the Vas Deferens (also called the Ductus Deferens) which attaches to the ejaculatory duct. The ejaculatory duct is a short segment that connects to the urethra.
vas deferens or ductus deferens
The vas deferens (plural: vasa deferentia), also called ductus deferens, (Latin: "carrying-away vessel"; plural: ductus deferentes), is part of the male anatomy of many vertebrates ; they transport sperm from the epididymis in anticipation of ejaculation.
"The vas deferens (plural: vasa deferentia), also called ductus deferens..."Ejected through the Urethra from the penis.
Vas deferens