[Campbell Biology P.1074] Which of the following pathways correctly describes the movement of... | Practice Question

Which of the following pathways correctly describes the movement of sperm from its production site to its exit from the male reproductive system?

  • A: Seminiferous tubules → Epididymis → Vas deferens → Ejaculatory duct → Urethra
  • B: Epididymis → Seminiferous tubules → Vas deferens → Urethra → Ejaculatory duct
  • C: Testis → Vas deferens → Epididymis → Urethra → Ejaculatory duct
  • D: Seminiferous tubules → Vas deferens → Epididymis → Urethra → Ejaculatory duct

Explanation

The text in the 'Ducts' section clearly states the sequence: 'From the seminiferous tubules of a testis, the sperm pass into the coiled duct of an epididymis. ... During ejaculation, the sperm are propelled from each epididymis through a muscular duct, the vas deferens. ...it joins a duct from the seminal vesicle, forming a short ejaculatory duct. The ejaculatory ducts open into the urethra...' Therefore, the correct path is Seminiferous tubules → Epididymis → Vas deferens → Ejaculatory duct → Urethra.