what comprises seminal fluid
As sperm enter the urethra, the seminal vesicles, prostate gland, and Cowper âs glands all secrete fluids into the urethra. 3 5 Sperm, Cont âd 5. These fluids nourish the sperm and protect them from the acidity of the female reproductive tract6. Semen is the mixture of sperm and fluids7. Involuntary contractions of the muscles force the semen through the urethra, and out of the body in a process called ejaculation 6 Seminal Vesicles 1. Active secretory gland2.