Ductus Deferens
The ductus deferens (formerly vas deferens) is a muscular tube that undergoes peristaltic contractions during ejaculation, propelling the spermatozoa from the epididymis to the urethra.
The ductus deferens leaves the tail of the epididymis, passes through the inguinal canal as a part of the spermatic cord, and within the abdomen returns caudad, separating from the neurovascular parts of the cord. As the two ductus deferentia approach the urethra, they approach one another and continue caudad between the rectum and urinary bladder, enclosed in a fold of peritoneum, the genital fold. The genital fold is embryologically homologous to the broad ligament suspending the uterus in females. in some male animals, a vestigial homologue of the tubes that in female animals becomes the uterus, the uterus masculinus, is present in the genital fold between the two ductus deferentia.
More on the topic Ductus Deferens:
-
Veterinarian -