vas deferens

Examples of vas deferens in the following topics:

• Testes Ducts

  • Testes ducts, which include the seminiferous tubules and vas deferens, are involved in the creation or transportation of sperm.
  • The spermatic cord is a connective tissue sheath that contains the vas deferens, testicular blood vessels, and nerves.
  • The smooth muscle layer of the vas deferens contracts in waves of peristalsis during ejaculation.
  • The procedure of deferentectomy, also known as a vasectomy, is a method of contraception in which the vas deferens are permanently cut, though in some cases it can be reversed.
  • Research in male contraception has focused primarily on the vas deferens with the use of the intra-vas device and reversible inhibition of sperm under guidance.

• Vasectomy

  • There are several methods by which a surgeon might complete a vasectomy procedure, all of which occlude (seal) at least one side of each vas deferens.
  • The buildup of sperm increases pressure in the vas deferens and epididymis.
  • Open-Ended vasectomy: The testicular end of the vas deferens is not sealed, allowing continued streaming of sperm into the scrotum.
  • Fascial Interposition: Recanalization of the vas deferens is a known cause of vasectomy failure(s).
  • Clip: A vasectomy using a mechanical clip does not require cutting the vas deferens, but rather uses a clip to squeeze shut the flow of sperm.

• Anatomy of the Male Reproductive System

  • The epididymus is located at the back of the testis and connects it to the vas deferens.
  • They include the vas deferens, seminal vesicles, prostate gland, and bulbourethral (Cowper's) glands.
  • Vas deferens: Transports mature sperm to the urethra in preparation for ejaculation.
  • Seminal vesicles: Sac-like pouches that attach to the vas deferens near the base of the bladder.

• Testes

  • The sperm moves into the vas deferens and is eventually expelled through the urethra, via the urethral orifice through muscular contractions.
  • Vas deferens, 11a.

• Accessory Sex Glands

  • Each seminal gland forms as an outward growth of the wall of ampulla of each vas deferens.
  • The excretory duct of the seminal gland opens into the vas deferens as it enters the prostate gland.
  • Prostate with seminal vesicles and seminal ducts, viewed from the front and above, including the urethra, seminal vesicle, vas deferens, ampulla, ejaculatory duct, and isthmus.

• Surgical Sterilization

  • Although the term "vasectomy" is established in the general community, the correct medical terminology is deferentectomy, since the structure known as the vas deferens has been renamed the ductus deferens.

• Urethra

  • Semen does not flow through the bladder or the rest of the urinary tract, instead it is a fluid made of sperm cells and other fluids that passes through a few different glands from the testes to the urethra through the vas deferens.

• Penis

  • Sperm are propelled through the vas deferens during ejaculation.
  • Fluids are added by the seminal vesicles before the vas deferens carries the sperm to the ejaculatory ducts, which join the urethra inside the prostate gland.

• Overview of the Male and Female Reproductive Systems

  • The second category, the ejaculatory fluid-producing glands, includes the seminal vesicles, prostate, and vas deferens.
  • The final category, used for copulation and deposition of the spermatozoa (sperm) within the female, includes the penis, urethra, vas deferens, and Cowper's gland.

• Premature Ejaculation

  • It involves deposition of seminal fluid from the ampullary vas deferens, seminal vesicles, and prostate gland into the posterior urethra.