In humans, male sex cells or spermatozoa sperm cells , are relatively motile. Female sex cells, called ova or eggs, are non-motile and much larger in comparison to the male gamete. Male and female sex cells are dramatically different from one another in size and shape. Male sperm resembles long, motile projectiles.
The male reproductive system consists of a number of sex organs that play a role in the process of human reproduction. These organs are located on the outside of the body and within the pelvis. The main male sex organs are the penis and the testicles which produce semen and sperm , which, as part of sexual intercourse , fertilize an ovum in the female's body; the fertilized ovum zygote develops into a fetus , which is later born as an infant. The corresponding system in females is the female reproductive system. The penis is the male intromittent organ. It has a long shaft and an enlarged bulbous-shaped tip called the glans penis , which supports and is protected by the foreskin.
The male reproductive system includes the scrotum, testes, spermatic ducts, sex glands, and penis. These organs work together to produce sperm, the male gamete, and the other components of semen. These organs also work together to deliver semen out of the body and into the vagina where it can fertilize egg cells to produce offspring. The scrotum is a sac-like organ made of skin and muscles that houses the testes. It is located inferior to the penis in the pubic region.
Reproduction is essential for any species to sustain its population. In the simplest sense, the most important function of every living organism is reproduction. Organs of the male and female reproductive systems play a central role in sexual reproduction by creating, nourishing, and housing sex cells called gametes. The human male reproductive system consists of gonads called testes, a series of ducts epididymis, vas deferens , ejaculatory duct, urethra that serve to transport spermatozoa to the female reproductive tract, and accessory sex glands seminal vesicles, prostate, and bulbourethral glands. The testes singular, testis are paired structures that originally develop in the abdomen and descend into the scrotum, a sac of skin and connective tissue positioned outside the pelvic cavity.