Ejaculatory duct

Vas deferens: Anatomy and Function

The vas deferens, also known as the vas deferens, is an important component of the male reproductive system. It is a tube that carries sperm from the testicles to the bladder, where it mixes with the fluid that forms seminal fluid.

Anatomically, the vas deferens begins in the testis, where it is called the efferent duct. From there it passes through the abdominal cavity and enters the pelvic region. It then passes by the bladder and joins the prostatic urethra to form the ejaculatory duct.

The vas deferens consists of three main components: the duct deferens, the vertebral nerves (PNA), and the blood vessels (BNA and JNA). The duct deferens is the main tube that transports sperm. PNA and BNA/JNA provide innervation and blood supply, respectively.

The function of the vas deferens is to transport sperm from the testicles to the urogenital bladder. To do this, the duct deferens uses its muscular walls to create peristalsis, which helps move the sperm forward. This peristalsis can be stimulated by sexual arousal and orgasm.

Although the vas deferens is an important component of the male reproductive system, it can also be subject to various diseases. For example, blockage of the deferens duct can lead to infertility, and inflammation or infection can cause pain and discomfort.

In conclusion, the vas deferens plays an important role in the male reproductive system by transporting sperm from the testicles to the urogenital bladder. Understanding its anatomy and function can help in the diagnosis and treatment of various diseases.



The “vas deferens” is an important organ system that transports seeds to the female reproductive organs for fertilization. In this article we will look at the structure and function of the vas deferens, and also discuss their possible disorders.

Structure The vas deferens are located in the lower part of the posterior abdominal wall near the genitals. They are presented in the form of two pipes, divided into two lobes: right and left. Each lobe consists of three sections: abdominal, pelvic and genital.

The abdominal section is located in the anterolateral wall of the abdomen and occupies its entire length. During this section, the seed is carried out from the female reproductive system, passing through the ovarian loops and fallopian tubes. The abdominal part ends with an opening at the junction with the pelvic part.

The pelvic part is located in the pelvic cavity. It has a curved shape and goes into the genital part. The latter serves as the end of the vas deferens and opens into the lumen of the uterine cavity with an opening in the area of ​​the fundus of the uterus. Functions The main function of the vas deferens is to carry the sperm from the ovary into the uterus for subsequent fertilization of the egg. Through this passage, seminal fluid filled with sperm moves toward the fallopian tubes. Next, the sperm is mixed with the already prepared egg and becomes fertilized.

One of the important factors affecting the ability to conceive a child is the condition of the seminal prostate. A healthy seminal fluid must contain a certain number of spermatoids, the timing of which is necessary for the normal process of fertilization and the likelihood of the formation of a zygote.

Often, disruption of the seminal duct system can lead to infertility. Possible causes include gastrointestinal diseases, abdominal trauma, age-related changes, infectious lesions and heredity. A decrease in the number of sperm in the seminal fluid can also provoke pathologies of the male reproductive organs. Conclusion The vas deferens plays an important role in the process of family planning. Proper functioning of these organs is key to successful conception and overall reproductive health. That's why