The word "ampulla ductus deferentis" refers to part of the male reproductive system. Its pronunciation may seem like a daunting task, but with the aid of the International Phonetic Alphabet (IPA), it becomes straightforward. To spell this word correctly, first, there's "AM-puh-luh" as pronounced in "amorous," then "DUHK-tuhs" and finally "duh-FEH-ren-tis." It might seem challenging, but with practice, anyone can master this pronunciation. Understanding the IPA can make even the most complicated words more accessible to pronounce.
The ampulla ductus deferentis, also known as the ampulla of the ductus deferens or the ampullary or common section of the vas deferens, is a specific anatomical structure found in the male reproductive system. It is a dilated portion or expansion of the ductus deferens, which is a narrow muscular tube responsible for carrying sperm from the epididymis to the urethra during ejaculation.
The ampulla ductus deferentis is located at the terminal end of the ductus deferens, where it joins with the seminal vesicle to form the ejaculatory duct. This transition occurs behind the urinary bladder and is positioned in close proximity to the prostate gland. The ampulla ductus deferentis plays a crucial role in the ejaculation process by providing a temporary storage site for sperm, ensuring its transportation is coordinated with the production and release of seminal fluid.
The walls of the ampulla ductus deferentis contain smooth muscles, which contract during ejaculation to propel sperm into the ejaculatory duct and ultimately into the urethra. This process facilitates the mixing of sperm with seminal fluid, produced by the seminal vesicle, to form semen. It is worth noting that the ampulla ductus deferentis is absent in some mammalian species, such as rodents.
In conclusion, the ampulla ductus deferentis is a dilated portion of the ductus deferens that serves as a temporary storage site for sperm and contributes to the ejaculatory process by connecting the ductus deferens with the seminal vesicles.
Ampulla of the vas deferens, the dilatation of the duct when it approaches its fellow just before it is joined by the duct of the seminal vesicle.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.