Final answer:
The function of seminal fluid is to nourish and transport sperm. It contains secretions that provide nutrients, help neutralize acidity, and contribute to sperm motility and survival. Seminal fluid carries sperm through the urethra and out of the body.
Step-by-step explanation:
The function of seminal fluid is to nourish and transport sperm. Seminal fluid contains secretions from the seminal vesicles, the prostate gland, and the bulbourethral gland. These secretions provide nutrients for the sperm, help neutralize the acidic environment in the female vagina, and contribute to the motility and survival of the sperm. Seminal fluid also carries sperm through the urethra and out of the body.
The secretions in seminal fluid include fructose, which is the main energy source for sperm, as well as alkaline substances that help neutralize vaginal acidity. This protects the sperm DNA from being damaged and allows the sperm to survive longer in the female reproductive tract. The accessory glands associated with the male reproductive system, such as the seminal vesicles, the prostate gland, and the bulbourethral gland, are responsible for producing most of the seminal fluid.