Function of gonads .. secretion of semen. Seminal vesicles. Cooper's gland. Prostate gland Gland: Three glands open in the urinary tract, namely: - Seminal vesicles. Cooper's gland. Prostate gland. Function of gonads: secretion of semen. Share This: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook