Seminal Vesicle

The seminal vesicle (lat. vesicula seminalis; synonyms: seminal vesicle, sperm vesicle, seminal vesicles, seminal gland, male gland) is a paired organ that is located in the lower part of the pelvis in men; It is a paired lateral outgrowth of each vas deferens.

The seminal vesicle is about 1 cm long and up to 5 mm wide. Its excretory duct, which opens into the urethra, contains secretions. This secretion is part of the seminal fluid, which is released during sexual intercourse.

The seminal vesicle is a lateral outgrowth of the end of each ejaculatory duct.

This is a strongly curved tube 5-12 cm long. It is found in most vertebrates and invertebrates; some mollusks do not have vesicles.

After activation in the epididymis after meiosis, sperm are released, which accumulate at the end of the ejaculatory duct and are transferred to the seminal vesicle, which is the outlet for seminal fluid.

The vesicle is connected by the seminal duct to the distal end of the ejaculatory duct; this forms the vas deferens or vas deferens. Thus, the final section of the ejaculatory duct turns into the ejaculatory duct, the cavity of which communicates directly with the lumen of the male part of the urethra.