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.
Empire Theme by Pixel Union. POS and Ecommerce by Shopify. View cart. Life size cut away spine showing the head with nasal and buccal cavity, half brain, eye with optic nerve. Removable female breast with rib insertions, heart in 2 parts, 2-lung halves, liver with gall bladder, 2-part stomach, large and small intestines with appendix flap opening and cover, half of kidney. Male genital organs in 4-parts and female genital organs in 2-parts with embryo in the 3rd month of pregnancy. The back shows the vertebral column, spinal cord with nerve endings and the 7th dorsal vertebra is removable.
Ambiguous genitalia is a rare condition in which an infant's external genitals don't appear to be clearly either male or female. In a baby with ambiguous genitalia, the genitals may be incompletely developed or the baby may have characteristics of both sexes. The external sex organs may not match the internal sex organs or genetic sex. Ambiguous genitalia isn't a disease, it's a disorder of sex development.