labium majus

大陰唇

WordNet

1. a liplike structure that bounds a bodily orifice (especially any of the four labiate folds of a womans vulva)

PrepTutorEJDIC

1. くちびる;くちびる状の物 / 《複数形で》陰唇

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/05/23 14:23:02」(JST)

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Labia majora
Labia majora and pudendal cleft
Latin	labium majus pudendi
Gray's	p.1265
Artery	Deep external pudendal artery
Nerve	Perineal branches of posterior femoral cutaneous nerve
Precursor	Genital swelling
Dorlands /Elsevier	Labia majora

Vulva structures with labels

The labia majora (singular: labium majus) are two prominent longitudinal cutaneous folds that extend downward and backward from the mons pubis to the perineum. The labia majora is homologous to the male scrotum.

Embryology

Embryologically, they develop from labioscrotal folds.

Anatomy

The labia majora constitute the lateral boundaries of the pudendal cleft, which contains the labia minora, interlabial sulci, clitoral hood, clitoral glans, frenulum clitoridis, the Hart's Line, and the vulval vestibule, which contains the external openings of the urethra and the vagina. Each labium majus has two surfaces, an outer, pigmented and covered with strong, crisp hairs; and an inner, smooth and beset with large sebaceous follicles. Between the two there is a considerable quantity of areolar tissue, fat, and a tissue resembling the dartos tunic of the scrotum, besides vessels, nerves, and glands. The labia majora are thicker in front, where they form by their meeting the anterior commisure of the labia majora. Posteriorly, they are not really joined, but appear to become lost in the neighboring integument, ending close to, and nearly parallel to, each other. Together with the connecting skin between them, they form the posterior commisure of the labia majora or posterior boundary of the pudendum. The interval between the posterior commissure of the labia majora and the anus, from 2.5 to 3 cm. in length, constitutes the perineum. Between the labia majora and the inner thighs are the labiocrural folds. Between the labia majora and labia minora are the interlabial sulci. Labia majora atrophy after menopause.

Use in grafting

The fat pad of the labia majora can be used as a graft, often as a so-called "Martius labial fat pad graft", and can be used, for example, in urethrolysis.

See also

• Labium
• Labia minora
• Cleft of venus

References

External links

• Labia Majora Medical Definition

This article incorporates text from a public domain edition of Gray's Anatomy.

UpToDate Contents

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English Journal

• Unusual Locations of Primary Subepithelial Squamous Cell Carcinomas of the Vulva.

• Scurry JP, Yu TT, Otton GR.Source1Hunter Area Pathology Service; 2School of Medicine and Public Health, University of Newcastle; and 3Hunter New England Centre for Gynaecologic Cancer Newcastle, New South Wales, Australia.
• Journal of lower genital tract disease.J Low Genit Tract Dis.2013 Jul 30. [Epub ahead of print]
• OBJECTIVE: This study aimed to report 2 cases of squamous cell carcinoma (SCC) of the vulva, arising from unusual subepithelial locations.MATERIALS AND METHODS: The first case was of an 85-year-old woman with a 65-year history of a mass in the left labium majus. The second case was of a 54-year-old
• PMID 23903200

• Arteriovenous Malformation of the Vulva: A Case Report.

• Pereira N, Dormosh M, Mirmanesh M, Guilfoil DS.SourceDepartments of 1Obstetrics and Gynecology and 2Pathology, Drexel University College of Medicine, Philadelphia, PA.
• Journal of lower genital tract disease.J Low Genit Tract Dis.2013 May 2. [Epub ahead of print]
• OBJECTIVE: To report the case of a patient with a large and symptomatic vulvar lesion, necessitating surgical excision.CASE: We report the case of a 57-year-old postmenopausal woman with a 6-month history of an enlarging vulvar lesion associated with vulvar pruritus. On examination, a pedunculated 7
• PMID 23645069

• Pseudoangiomatous Stromal Hyperplasia of the Vulva Presenting as a Polypoid Vulvar Lesion: A Lesion Associated With Anogenital Mammary-Like Tissue-Report of a Case and Review of the Literature.

• Heller DS, Aisner SC, Fitzhugh VA, Katava G, Barrett T.SourceDepartments of 1Pathology and Laboratory Medicine, and 2Obstetrics, Gynecology, and Women's Health, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, NJ.
• Journal of lower genital tract disease.J Low Genit Tract Dis.2013 Apr 19. [Epub ahead of print]
• OBJECTIVE: The study aimed to report the case of a patient with a polypoid vulvar lesion clinically thought to be an aggressive angiomyxoma.MATERIALS AND METHODS: On examination, a 4.0 × 2.0 × 1.5-cm polypoid lesion was seen on the right labium majus.RESULTS: Histopathological findings of the exci
• PMID 23609586

Japanese Journal

• 症例報告 Prepubertal unilateral fibrous hyperplasia of the labium majusの1例

• 国本 佳代,上出 康二,古川 福実 [他]
• 臨床皮膚科 66(3), 229-233, 2012-03-00
• NAID 40019209463

• 症例報告 G群溶連菌感染を伴った大陰唇に発生した巨大懸垂性線維腫の1例

• 平井 伸幸,田村 政昭
• 臨床皮膚科 64(3), 235-238, 2010-03-00
• NAID 40017017669

• Transformation of vulvar pseudolymphoma (lymphoma-like lesion) into a marginal zone B-cell lymphoma of labium majus

• MARTORELL Miguel,MORALES John Jairo Gaona,GARCIA Jose Angel,HERRERA Jair Manuel Gutierrez,GRAU Francisco Gozalbo,CALABUIG Consuelo,VALLES Ana Perez
• The journal of obstetrics and gynaecology research 34(4), 699-705, 2008-08-31
• NAID 10025338056

Related Links

• labium majus - definition of labium majus in the Medical ...

labium majus. See labia majora. labium [la´be-um] (pl. la´bia) (L.) lip. adj., adj la´bial. Female external genitalia. From Applegate, 2000. ... labium mi´nus (pl. la´bia mino´ra), the small fold of skin on either side, between the labia ...

• labium majus - Definition

labium majus definition from the mondofacto online medical dictionary ... Search dictionary help labium majus medical dictionary One of two rounded folds of integument forming the lateral boundaries of the pudendal cleft. The labia ...

Related Pictures

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★リンクテーブル★

リンク元	「大陰唇」
関連記事	「labium」

「大陰唇」

　　[★]

英

labia majora (M,KH)

ラ

labium majus (AN,N,Z,KL), labium majus pudendi

関

小陰唇、外生殖器、女性外生殖器

• 男性の陰嚢と相同の器官 (KH.256)

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

「labium」

　　[★]

• n. (pl.)labia

• 唇
• 陰唇