The vesicular seminalis, also known as the seminal vesicle, is a crucial component of the male reproductive system. These paired glands, located behind the bladder and above the prostate gland, play a significant role in the production and secretion of seminal fluid. This fluid constitutes a major part of semen, which nourishes and helps transport sperm during ejaculation.

Structure and Location

The vesicular seminalis are tubular structures that are connected to the ejaculatory ducts. Each vesicle is about 5-10 cm in length and is situated posterior to the bladder and anterior to the rectum. Their placement is critical for their function, as it allows them to mix their secretions with sperm coming from the testes.

Function of Seminal Fluid

The primary function of the seminal vesicles is to produce a fluid that makes up about 60-70% of the total volume of semen. This fluid contains fructose, which provides energy for sperm cells, as well as other substances that aid in the nourishment and activation of sperm. The fluid also helps in the protection of sperm from the acidic environment of the female reproductive tract.

Clinical Significance

Disorders of the vesicular seminalis, such as inflammation or blockage, can impact male fertility. Conditions like seminal vesiculitis can cause pain and discomfort, and affect semen quality. Regular medical check-ups and timely intervention can help manage these issues and preserve reproductive health.

In summary, the vesicular seminalis are vital for the production of seminal fluid, which supports sperm vitality and successful reproduction. Their proper functioning is essential for male fertility and overall reproductive health.