Prostate gland

A solid, chestnutshaped organ that surrounds the 1st part of the male urethra, just below the bladder. It produces secretions that form part of the seminal fluid during ejaculation. The ejaculatory ducts from the seminal vesicles pass through the prostate gland to enter the urethra.

 

Online Medical Dictionary: Your essential reference to over 5000 medical terms.