Sex organ

The sex organs of a green alga Chara are the male antheridia (red) and female archegonia (brown).

A sex organ (or reproductive organ) is any part of an animal's body that is involved in sexual reproduction. The reproductive organs together constitute the reproductive system. The testis in the male, and the ovary in the female, are called the primary sex organs.[1] The external sex organs – the genitals or genitalia, visible at birth in both sexes, and the internal sex organs are called the secondary sex organs.[1]

Mosses, ferns, and some similar plants have gametangia for reproductive organs, which are part of the gametophyte.[2] The flowers of flowering plants produce pollen and egg cells, but the sex organs themselves are inside the gametophytes within the pollen and the ovule.[3] Coniferous plants likewise produce their sexually reproductive structures within the gametophytes contained within the cones and pollen. The cones and pollen are not themselves sexual organs.

Terminology

The Latin term genitalia, sometimes anglicized as genitals, is used to describe the externally visible sex organs: in male mammals, the penis and scrotum; and in female mammals, the vulva and its organs.

The genitals and the internal sex organs are referred to as the secondary sex organs. The primary sex organs are the gonads, a pair of sex organs, specifically the testes in the male or the ovaries in the female. Gonads as primary sex organs, generate reproductive gametes containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.

In general zoology, given the great variety in organs, physiologies, and behaviors involved in copulation, male genitalia are more strictly defined as "all male structures that are inserted in the female or that hold her near her gonopore during sperm transfer"; female genitalia are defined as "those parts of the female reproductive tract that make direct contact with male genitalia or male products (sperm, spermatophores) during or immediately after copulation".[4]

Other Languages
Afrikaans: Geslagsorgaan
Alemannisch: Geschlechtsorgan
العربية: عضو جنسي
বাংলা: যৌন অঙ্গ
Bân-lâm-gú: Seⁿ-si̍t-khì
bosanski: Spolni organi
català: Òrgan sexual
čeština: Pohlavní orgán
Cymraeg: Organau rhyw
dansk: Kønsorgan
español: Órgano sexual
euskara: Sexu-organo
français: Organe sexuel
Gàidhlig: Ball-gineamhainn
한국어: 성기
हिन्दी: यौन अंग
hrvatski: Spolni organi
Bahasa Indonesia: Alat kelamin
íslenska: Kynfæri
עברית: איבר מין
Кыргызча: Жыныс органы
मराठी: गुप्तांग
Bahasa Melayu: Organ pembiakan
Nederlands: Geslachtsorgaan
日本語: 性器
norsk nynorsk: Kjønnsorgan
oʻzbekcha/ўзбекча: Jinsiy aʼzolar
Plattdüütsch: Geslechtsorgan
polski: Genitalia
português: Órgão sexual
Ripoarisch: Jeschlechtsorjan
română: Organ sexual
Scots: Sex organ
Simple English: Sex organ
slovenščina: Spolni organ
Soomaaliga: Saxaax
српски / srpski: Полни орган
srpskohrvatski / српскохрватски: Spolni organi
svenska: Könsorgan
Türkçe: Cinsel organlar
українська: Статеві органи
Vahcuengh: Gasawh
Tiếng Việt: Cơ quan sinh dục
粵語: 生殖器
中文: 生殖器