Search the web for:

Economy-point.org



» Economics » Veterinary medicine » Anatomy » Sex organ


Page modified: Saturday, June 24, 2006 09:09:13

The sex organs (lat. Organa genital organs) or genital organs serve the direct reproduction with species with several and/or different sexes primarily. They are called therefore also primary sex characteristics.

Functionally one can between the Sexualorganen - organs, which serve for the practice of the sexual intercourse - and the reproduction organs differentiate. It accordingly expresses differentiated of internal genital organs. With male individuals it is still added that - when third function - which is Penis part of the deriving urinary passages.

Expresses sex organs in the Embryonalphase

Female sex organs of the mammals

The female sex organs (Organa genital organs tool Nina) are divided as follows:

Expresses sex organs

Vulva or "“shame"” with the "“shame column"” the forming large and the sheath forecourt surrounding small Schamlippen and the Klitoris [5].

Internal sex organs

  • Vagina (sheath) [7]
  • [10]
  • Eileiter [1]
  • Ovaries [8]

Accessory sex glands

  • Prostata tool Nina
  • small forecourt glands
  • Bartholin glands

Male sex organs of the mammals

The following organization of the male sex organs (Organa genital organs masculina) likes at first sight astonishment: The testicles [17] lie outside, rank however nevertheless among the internal sex organs. This organization is justified in the fact that the testicles develop first in the abdominal cavity and only to the birth with most mammals into the Hodensack [18] moves ("“testicle descent"”, Descensus testis). This is because of the fact that the Fetus develops womanlike first. The effect of the Y-Chromosoms sets only some weeks after the first cell division. Up to then the bases for the female sex organs are already put. Due to then setting Testosteron effect is converted the ovaries in testicles and the Klitoris in the Penis strengthens. In place of the internal sheath wall the Skrotum [18] develops.

Expresses sex organs

  • Penis including the male urethra
  • Skrotum (Hodensack) [18]

Internal sex organs

  • Testicle [17]
  • Nebenhoden [16]
  • Samenleiter [15]

Accessory sex glands

  • Seed leader ampul
  • Seed blister gland [10]
  • Prostata [12]
  • [13]

Page cached: Wednesday, July 5, 2006 14:34:59
Valid XHTML 1.0!  Valid CSS!

Page copy protected against web site content infringement by Copyscape