AskDefine | Define perineum

Dictionary Definition

perineum n : the general region between the anus and the genital organs [also: perinea (pl)]

User Contributed Dictionary

English

Alternative spellings

Etymology

From post-classical perineum, perineos, from περίνεος, from περι- + ἰνᾶν + adjectival suffix -ιος.

Pronunciation

/pɛɹɪˈniːəm/

Noun

  1. The region between the genital area and the anus in both sexes

Synonyms

See

Translations

anatomical term
  • Arabic: عجان
  • trreq Aragonese
  • trreq Armenian
  • trreq Asturian
  • trreq Basque
  • Bosnian: međica
  • Bulgarian: перинеум
  • trreq Catalan
  • Chinese:
    Mandarin: huìyīn
  • Croatian: međica
  • Czech: hráz
  • Danish: mellemkød
  • Dutch: perineum
  • Estonian: lahkliha
  • Finnish: väliliha
  • French: périnée
  • German: Perineum
  • trreq Galician
  • Greek: περίνεο
  • Hebrew: חיץ הנקבים
  • trreq Hungarian
  • Italian: perineo
  • Japanese: 会陰 (えいん, ein)
  • Korean: 회음부
  • trreq Latvian
  • Lithuanian: tarpvietė
  • trreq Norwegian
  • Persian: میاندوراه, عجان, پرینه
  • Polish: krocze
  • Portuguese: períneo
  • Romanian: perineu
  • trreq Romansch
  • Russian: промежность
  • trreq Sicilian
  • Serbian:
    Cyrillic: међица
    Roman: međica
  • trreq Slovak
  • trreq Slovene
  • Spanish: periné, perineo
  • Swedish: mellangård

Derived terms

Extensive Definition

In human anatomy, the perineum is generally defined as the surface region in both males and females between the pubic symphysis and the coccyx. The perineum is the region of the body inferior to the pelvic diaphragm and between the legs.
A diamond-shaped area on the inferior surface of the trunk which includes the anus and, in females, the vagina. Its definition varies: it can refer to only the superficial structures in this region, or it can be used to include both superficial and deep structures.
The perineum corresponds to the outlet of the pelvis.
The anogenital distance is a measure of male feminisation measuring the distance between the anus and the base of the penis. Studies show that the perineum is twice as long in males as in females. Validity of anogenital distance as a marker of in utero phthalate exposure. PMID 16393642 Measuring the anogenital distance in neonatal humans has been suggested as a noninvasive method to predict neonatal and adult reproductive disorders.

Boundaries

Its deep boundaries are as follows:
In Alfred Kinsey's 1967 report, he concluded that the perineum was one of the 6 key erogenous zones for males.

Triangles

A line drawn transversely across in front of the ischial tuberosities divides the space into two triangles:

Perineal fascia

The terminology of the perineal fascia can be confusing, and there is some controversy over the nomenclature. This stems from the fact that there are two parts to the fascia, the superficial and deep parts, and each of these can be subdivided into superficial and deep parts.
The layers and contents are as follows, from superficial to deep:
  • 2) superficial perineal fascia: Subcutaneous tissue divided into two layers: (a) A superficial fatty layer, and (b) Colles' fascia, a deeper, membranous layer.
  • 3) deep perineal fascia and muscles:

Areas of the perineum

The region of the perineum can be considered a distinct area from pelvic cavity, with the two regions separated by the pelvic diaphragm. The following areas are thus classified as parts of the perineal region:

Additional images

References

External links

perineum in Arabic: عجان
perineum in Czech: Hráz (anatomie)
perineum in Danish: Mellemkød
perineum in German: Perineum
perineum in Estonian: Lahkliha
perineum in Modern Greek (1453-): Περίνεο
perineum in Spanish: Periné
perineum in Persian: میاندوراه
perineum in French: Périnée
perineum in Korean: 회음부
perineum in Italian: Perineo
perineum in Latin: Perineum
perineum in Lithuanian: Tarpvietė
perineum in Dutch: Perineum
perineum in Japanese: 会陰
perineum in Low German: Damm (Anatomie)
perineum in Polish: Krocze
perineum in Portuguese: Períneo
perineum in Romanian: Perineu
perineum in Russian: Промежность
perineum in Finnish: Väliliha
perineum in Swedish: Mellangård
perineum in Vietnamese: Hội âm
perineum in Ukrainian: Промежина
perineum in Chinese: 會陰
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1