What is the primary function of the seminal fluid?

The primary function of seminal fluid is to nourish and transport sperm. Seminal fluid, also known as semen, is produced by the male reproductive system and contains a mixture of fluids, including secretions from the seminal vesicles, prostate gland, and bulbourethral glands. This fluid provides a medium for sperm to swim in, which is essential for successful fertilization.

Additionally, the sugars and nutrients within the seminal fluid serve to energize the sperm, ensuring they have the necessary energy to reach and penetrate the egg during fertilization. The alkaline nature of the seminal fluid also helps to neutralize the acidity of the female reproductive tract, creating a more favorable environment for sperm survival.

While the other options touch on important aspects of reproduction, they do not directly relate to the primary role of seminal fluid. For instance, eliminating toxins and stimulating egg cell development are functions related to different reproductive processes and systems, while estrogen production is associated with female reproductive functions, not the role of seminal fluid. Overall, the contribution of seminal fluid in nourishment and transport of sperm is crucial for reproductive success.