Answer:
The seminal vesicle, prostate glands and bulbourethral gland.
Explanation:
The seminal vesicle, bulbourethral glands and prostate gland are three vital accessory glands the seminal fluid for nourishment, motility and protection. Prostrate fluids provide nourishment to sperm cells. The seminal vesicle provides fluid that helps sperm cell to move and source of energy. The seminal fluid is sugar rich in nature mainly fructose. The bulbourethral fluid provides mucous which neutralize any type of residual acidity to the urethra.
