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The vas deferens (pl.: vasa deferentia), ductus deferens (pl.: ductūs deferentes), or sperm duct is part of the male reproductive system of many vertebrates. In mammals, spermatozoa are produced in the seminiferous tubules and flow into the epididymal duct.
Each ejaculatory duct is formed by the union of the vas deferens with the duct of the seminal vesicle. [2] They pass through the prostate, and open into the urethra above the seminal colliculus. During ejaculation, semen passes through the prostate gland, enters the urethra and exits the body via the urinary meatus. [3]
This image is a derivative work of the following images: ... Description={{en|1=The route of the vas deferens from testis to the penis.}} |Source=*[[: ...
The spermatic cord is the cord-like structure in males formed by the vas deferens (ductus deferens) and surrounding tissue that runs from the deep inguinal ring down to each testicle. Its serosal covering, the tunica vaginalis, is an extension of the peritoneum that passes through the transversalis fascia. Each testicle develops in the lower ...
Tail end of human embryo, from eight and a half to nine weeks old. 1 - 7: Homologous male and female pelvic organs. Diagrams that show the development of male and female organs from a common precursor.
The vas deferens, which is also known as the sperm duct, is a thin tube approximately 30 centimetres (0.98 ft) long that starts from the epididymis to the pelvic cavity. It carries the spermatozoa from the epididymis to the ejaculatory duct.
1. Epididymis 2. Head of epididymis 3. Lobules of epididymis 4. Body of epididymis 5. Tail of epididymis 6. Duct of epididymis 7. Deferent duct (ductus deferens or vas deferens) Specialty: Urology: Symptoms: Severe testicular pain, elevated testicle [1] Complications: Infertility [2] Usual onset: Sudden [1] Types: Intravaginal torsion ...
Vasography is an X-ray study of the vas deferens to see if there is blockage, oftentimes in the context of male infertility. [1] An incision is made in the scrotum, contrast is injected in the vas deferens, and X-rays are taken from different angles. [1] Thus, it is an invasive procedure and carries risk of iatrogenic scarring and obstruction ...