The uterus sits below the urinary bladder.

 

A. urethra: This terminal duct of the male reproductive system serves a dual purpose by transporting both urine and semen. It is divided into prostatic, membranous, and spongy segments. As the final conduit for ejaculation, it is an essential component of the male reproductive ductal network.

B. ductus deferens: Also known as the vas deferens, this muscular tube propels sperm from the epididymis toward the ejaculatory duct during sexual arousal. It travels within the spermatic cord and enters the pelvic cavity via the inguinal canal. It represents a major segment of the internal duct system.

C. seminiferous tubules: These tightly coiled structures within the testicular lobules are the site of spermatogenesis. While they are the initial location where sperm are formed, they function as the beginning of the ductal pathway. They lead directly into the tubuli recti and the rete testis.

D. epididymis: This comma-shaped organ stores immature sperm and provides the environment for them to acquire motility and fertility. It consists of a highly coiled duct that connects the efferent ductules to the ductus deferens. It is a vital intermediary in the male reproductive tract.

E. corpus spongiosum: This is a column of erectile tissue that surrounds the spongy urethra within the penis. Its primary function is to prevent the compression of the urethra during an erection, ensuring a patent pathway for ejaculation. It is an anatomical erectile body rather than a duct.

A. urethra: This terminal duct of the male reproductive system serves a dual purpose by transporting both urine and semen. It is divided into prostatic, membranous, and spongy segments. As the final conduit for ejaculation, it is an essential component of the male reproductive ductal network.

B. ductus deferens: Also known as the vas deferens, this muscular tube propels sperm from the epididymis toward the ejaculatory duct during sexual arousal. It travels within the spermatic cord and enters the pelvic cavity via the inguinal canal. It represents a major segment of the internal duct system.

C. seminiferous tubules: These tightly coiled structures within the testicular lobules are the site of spermatogenesis. While they are the initial location where sperm are formed, they function as the beginning of the ductal pathway. They lead directly into the tubuli recti and the rete testis.

D. epididymis: This comma-shaped organ stores immature sperm and provides the environment for them to acquire motility and fertility. It consists of a highly coiled duct that connects the efferent ductules to the ductus deferens. It is a vital intermediary in the male reproductive tract.

E. corpus spongiosum: This is a column of erectile tissue that surrounds the spongy urethra within the penis. Its primary function is to prevent the compression of the urethra during an erection, ensuring a patent pathway for ejaculation. It is an anatomical erectile body rather than a duct.