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{{for|the ovary of a flower|Gynoecium}}
{{Infobox anatomy
| Name        = Ovary
| Latin       = ovarium
| Image       = File:Ovary nih.jpg
| Caption     = The ovaries form part of the [[female reproductive system]], and attach to the [[fallopian tube]]s
| Width       = 
| Image2      = Gray589.png
| Caption2    = Blood supply of the [[Human female reproductive system|human female reproductive organs]]. The left ovary is the oval shaped structure visible above the label "ovarian arteries".
| Precursor   = 
| System      = [[Female reproductive system]]
| Artery      = [[ovarian artery]], [[uterine artery]]
| Vein        = [[ovarian vein]]
| Nerve       = [[ovarian plexus]]
| Lymph       = [[Paraaortic lymph node]]
}}
'''Ovaries''' ([[Singular]]: '''Ovary''') are [[Organ (anatomy)|organs]] found in [[female]] [[organism]]s. Ovaries are part of the [[reproductive system]] needed to [[Sexual reproduction|reproduce sexually]]. 

Most [[vertebrate]]s have ovaries. Usually animals have two ovaries. [[Bird]]s usually have only one working ovary; [[snake]]s have one ovary in front of the other. The ovaries are similar to [[testicle]]s in men.

== Anatomy ==
Ovaries are shaped like [[egg (biology)|egg]]s and are around 3 [[centimeter|cm]] by 1.5 cm by 1.5 cm. The ovary is found in the side walls of the [[pelvis]]. 

Each ovary is attached to the [[Fallopian tube]]. Usually each ovary takes turns releasing eggs every [[month]].

== Uses ==
Ovaries have two purposes:
* Produce female sex [[hormone]]s resulting in [[puberty]]
* Produce [[ovum|ova]] (also called "egg cells"), which are the female [[sexual reproduction|reproductive]] cells.

== Menstruation ==
{{Main|Menstruation}}
During menstruation, an ovum is released from the ovary and enters one of the Fallopian tubes. There, the ovum can be fertilised. Ovaries have a certain number of eggs in them, so when eggs stop being released, this is the start of the [[menopause]]. During this time, female hormones stop being produced.

==Related pages==
* [[Cervix]]
* [[Fallopian tube]]
* [[Menopause]]
* [[Ovum]]
* [[Vagina]]

== Other websites ==
* [http://www.merck.com/mmhe/sec22/ch241/ch241a.html Merck Online Medical Library: Female Reproductive System]

{{reproductive system}}
{{endocrine system}}

[[Category:Anatomy of the female reproductive system]]

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