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Encyclopedia > Gonads

A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in an complex organism; namely:

More generally and popularly, the term sex organ refers to any part of the body involved in erotic pleasure. The larger list would certainly include the anus for either sex, the prepuce, the breasts (especially the nipples) for females, and the nipples for males.


The Latin term genitalia is used to describe the sex organs, and in the English language this term and genital area are most often used to describe the externally visible sex organs or external genitalia: in males the penis and scrotum, in females the vulva. The other parts of the sex organs are called the internal genitalia.


A gonad is a sex organ that produces gametes, specifically the testes or ovaries in humans.


Organs of sexual anatomy originate from a common anlage and differentiate into male or female sex organs. Each sexual organ in one sex has a homologous counterpart in the other one. See a list of homologues of the human reproductive system.


Anatomical terms related to sex

The following is list of anatomical terms related to sex and sexuality:

See also: sex, human sexuality, sexual behavior, Obstetrics and gynecology, circumcision, castration, intersex, List of transgender-related topics, intimate parts, secondary sex characteristics, body modification, genital modification and mutilation, Sexual fetishism



Reproductive system

Female: Cervix - Clitoris - Fallopian tubes - Bartholin's glands - Hymen - Mammary glands - Ovaries - Skene's glands - Urethra - Uterus - Vagina
Male: Bulbourethral glands - Cowper's glands - Ejaculatory duct - Epididymis - Penis - Prostate - Scrotum - Seminal vesicles - Spermatic cord - Testes - Urethra - Vas deferens


Human organ systems

Cardiovascular system - Digestive system - Endocrine system - Immune system - Integumentary system - Lymphatic system - Muscular system - Nervous system - Skeletal system - Reproductive system - Respiratory system - Urinary system


  Results from FactBites:
 
YouTube - weeeeeeeeeeeee (366 words)
gonads in th lightning in the lightning and in the rain ahahahahahha
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such i hilarious video about gonads and strife....
Reproductive System - MSN Encarta (1422 words)
The primordial germ cells remain inactive in the gonads until the animal reaches sexual maturity, when the undifferentiated cells undergo a great number of normal cell divisions or mitoses.
The size of gonads increases at sexual maturity because of the great number of germ cells produced at that time; many germ cells are also produced during breeding seasons so that many animals have a seasonal increase in size of the gonads.
The functioning of both male and female gonads is under the hormonal influence of the pituitary gland.
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