Vas deferens

Male internal organs in the pelvic area .
1 - bladder ;
2 - pubic bone ;
3 - penis ;
4 - cavernous body ;
5 - the head of the penis ;
6 - foreskin ;
7 - the external opening of the urethra ;
8 - colon ;
9 - the rectum ;
10 - seminal vesicle ;
11 - vas deferens ;
12 - prostate gland ;
13 - bulbourethral glands ;
14 - anus ;
15 - vas deferens ;
16 - epididymis ;
17 - testicle ;
18 - scrotum

The vas deferens ( Latin ductus deferens ^[1] ) is a paired organ of the male reproductive system with a length of about 50 cm, a diameter of about 0.5 mm , is a direct continuation of the duct of the epididymis. The vas deferens ends at the confluence with the excretory duct of the seminal vesicle (forming the vas deferens). Thanks to the well-developed muscle membrane, the duct does not subside and is easily palpated as part of the spermatic cord.

In the vas deferens, four parts are distinguished:

• Short testicular - behind the testicle , medial to its appendage.
• Cordicular - rises up as part of the spermatic cord medially from its vessels, reaches the inguinal ring.
• Inguinal - passes in the inguinal canal .
• Pelvic - lateral wall of the pelvis.

After that, the vas deferens follows the posterior and posterior retroperitoneum until it merges with the excretory duct of the seminal vesicle .

The expanded spindle-shaped end section forms an ampule of the vas deferens, 3-4 cm long. In the lower part, the ampoule gradually narrows and at the level of the upper edge of the prostate gland connects to the excretory duct of the seminal vesicle .