Anatomía del Aparato Genitourinario Masculino

The testicles, also known as testes, are a pair of oval-shaped organs located in the scrotum, a sac of skin and muscle that hangs below the penis. The testicles produce sperm and testosterone, a hormone that regulates male characteristics and reproductive functions. The epididymis is a long, coiled tube that connects the testicles to the vas deferens. The epididymis stores and matures sperm, allowing them to develop the ability to fertilize an egg. The vas deferens is a muscular tube that carries sperm from the epididymis to the prostate gland. The prostate gland is a walnut-sized gland that surrounds the urethra, the tube that carries urine and semen out of the body. The prostate gland produces fluids that make up semen, which nourishes and protects sperm during ejaculation. The seminal vesicles are two small glands that produce a significant portion of the fluid that makes up semen. The seminal vesicles are located behind the bladder and empty their fluids into the vas deferens. The prostate gland and seminal vesicles work together to produce a fluid that makes up about 60% of semen. The remaining 40% of semen comes from the testicles and other glands. The urethra is a tube that carries urine and semen out of the body. In males, the urethra passes through the prostate gland and the penis. The penis is a cylindrical organ that contains the urethra and is responsible for urination and ejaculation. The scrotum is a sac of skin and muscle that hangs below the penis and contains the testicles. The scrotum helps regulate the temperature of the testicles, keeping them cooler than the rest of the body to facilitate sperm production.