Sometimes the things you'd never bring up in polite company are the most interesting. Case in point: semen. It's one of those sex -related subjects that's shrouded in so much mystery, it becomes even more intriguing. There are the obvious facts: it's a major part of getting someone pregnant and has garnered a lot of laughs in movies. There's Something About Mary , anyone? But beyond that, semen is actually one of those things that will probably make you marvel at how amazing the human body is.
20 Things You May Not Have Known About Semen
Male Reproductive System (for Parents) - KidsHealth
Sperm gets ejected from the penis, enters the vagina, and swims up the reproductive tract until they reach the egg to fertilize it. Barely years ago, it was considered a major scientific breakthrough when scientists came up with the idea that a fully formed, tiny human inhabited the head of each sperm — totally debunked and untrue. Fortunately, as the human body has evolved over thousands of years to maximize fertility potential, so has our scientific understanding about sperm. But many of us still believe some pretty unscientific, long-standing sperm myths.
12 Fascinating Facts About Semen
Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetz , are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes meets an egg, this fertilized egg is called a zygote ZYE-goat.
Ejaculation , the release of sperm cells and seminal plasma from the male reproductive system. Ejaculation takes place in two phases: in the first, or emission, stage, sperm are moved from the testes and the epididymis where the sperm are stored to the beginning of the urethra , a hollow tube running through the penis that transports either sperm or urine; in the second stage, ejaculation proper, the semen is moved through the urethra and expelled from the body. Sperm cells that are stored in the male body are not capable of self-movement because of the acidity of the accompanying fluids. When the sperm receive fluids, called seminal plasma , from the various internal accessory organs prostate gland , ejaculatory ducts , seminal vesicles , and bulbourethral glands , the acidity decreases.