Which is not the male sex accessory gland?

Rete testis

The correct answer is option (3) - Rete testis

The male accessory glands are the seminal vesicles, prostate gland, and bulbourethral glands. These glands contribute various components to semen, playing a crucial role in the nourishment, protection, and transport of sperm. Secretions of these glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes. The secretions of bulbourethral glands also help in the lubrication of the penis.