Which one of the following structures is not the male sex accessory duct?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Seminal vesicles
The accessory glands are separate from the ducts: the seminal vesicles, the prostate and the bulbourethral glands.
Option (1) Seminal vesicles — Not a male sex accessory duct. They are accessory glands; their secretions form part of the seminal plasma.
Option (2) Vas deferens — A male sex accessory duct.
Option (3) Vasa efferentia — A male sex accessory duct.
Option (4) Rete testis — A male sex accessory duct.
Note: The same question was also asked in CUET (UG) 2026 on 14-05-2026 (Slot 1).
NCERT Extract:
The Male Reproductive System – “… The male sex accessory ducts include rete testis, vasa efferentia, epididymis and vas deferens (Figure 2.1b). The seminiferous tubules of the testis open into the vasa efferentia through rete testis. The vasa efferentia leave the testis and open into epididymis located along the posterior surface of each testis.”
The Male Reproductive System – “The male accessory glands (Figure 2.1a, b) include paired seminal vesicles, a prostate and paired bulbourethral glands. Secretions of these glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes.”
