Which sequence lists the male reproductive parts from outside to inside?

• A. Scrotum, testicle, epididymis, vas deferens, seminal vesicle, urethra
• B. Scrotum, epididymis, testicle, vas deferens, seminal vesicle, urethra
• C. Scrotum, testicle, vas deferens, epididymis, seminal vesicle, urethra
• D. Scrotum, testicle, epididymis, seminal vesicle, vas deferens, urethra

Answer: (A)

Think about the path of sperm as it travels from outside the body inward. The scrotum is the outer pouch that contains the testicle. Inside the testicle, sperm are produced, and the epididymis sits on the testicle where they mature. From there, the sperm move into the vas deferens, a duct that carries them upward toward the pelvic cavity. In the pelvis the seminal vesicles lie nearby and add fluid to form semen, and the ducts from the vas deferens join with the seminal vesicles to form the ejaculatory route that leads into the urethra. The urethra is the final passage through which semen exits the body. This sequence—scrotum, testicle, epididymis, vas deferens, seminal vesicles, urethra—follows the actual anatomical arrangement and the flow of sperm and seminal fluid, so it is the best representation of outside-to-inside order.