Sperm cells mature in the ductus deferentia.
ejaculatory ducts.
epididymides.
seminal vesicles.
The correct answer and explanation is:
The correct answer is epididymides.
Sperm cells are produced in the testes, specifically in the seminiferous tubules. However, the sperm cells are not immediately capable of fertilizing an egg. After their production, sperm cells undergo maturation in the epididymis. The epididymis is a long, coiled tube located at the back of each testis. This structure plays a critical role in the maturation process of sperm cells.
During their passage through the epididymis, which may take several days, sperm cells undergo changes that enhance their ability to swim and ultimately fertilize an egg. These changes include the acquisition of motility (movement capability) and the final condensation of the sperm’s DNA. The environment in the epididymis also allows sperm to gain the necessary proteins on their surfaces that help them interact with the egg during fertilization.
Once the sperm cells have matured in the epididymis, they are stored until ejaculation. From the epididymis, sperm cells travel into the ductus deferens (also known as the vas deferens), a muscular tube that propels the sperm toward the urethra during ejaculation. The ejaculatory ducts and seminal vesicles do contribute to the production of semen by secreting fluids that nourish and transport the sperm, but they are not involved in the maturation of sperm cells themselves.
In summary, the epididymis is where sperm cells mature, acquiring the necessary attributes for fertilization. This process ensures that the sperm cells are fully prepared to meet and fertilize an egg during reproduction.