WordNet

a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
anything with a round shape resembling a teardrop
a rounded part of a cylindrical instrument (usually at one end); "the bulb of a syringe"
a rounded dilation or expansion in a canal or vessel or organ
relating to the sense of equilibrium
having a bulb

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『球根』(ユり・タマネギなどの地下茎),りん(鱗)茎,球茎 / 球根状のもの;電球,真空管

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/03/25 18:05:36」(JST)

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The sub-areas of the clitoris—areas include clitoral glans, body, crura. The vestibular bulbs and corpora cavernosa are also shown.

In female anatomy, the vestibular bulbs, also known as the clitoral bulbs, are aggregations of erectile tissue that are an internal part of the clitoris. They can also be found throughout the vestibule—next to the clitoral body, clitoral crura, urethra, urethral sponge, and vagina.

They are to the left and right of the urethra, urethral sponge, and vagina.

The vestibular bulbs are homologous to the bulb of penis and adjoining part of the corpus spongiosum of the male, and consists of two elongated masses of erectile tissue, placed one on either side of the vaginal orifice and united to each other in front by a narrow median band termed the pars intermedia.

Their posterior ends are expanded and are in contact with the greater vestibular glands; their anterior ends are tapered and joined to one another by the pars intermedia; their deep surfaces are in contact with the inferior fascia of the urogenital diaphragm; superficially they are covered by the bulbospongiosus.

Physiology[edit]

During the response to sexual arousal the bulbs fill with blood, which then becomes trapped, causing erection. As the clitoral bulbs fill with blood, they tightly cuff the vaginal opening, causing the vulva to expand outward. Nearby structures this may put pressure on include the corpus cavernosum of clitoris and crus of clitoris.

The blood inside the bulb’s erectile tissue is released to the circulatory system by the spasms of orgasm, but if orgasm does not occur, the blood will exit the bulbs over several hours.^[1]

References[edit]

^ Chalker, Rebecca (2000). The Clitoral Truth. Seven Seas Press. p. 200. ISBN 1-58322-473-4.

External links[edit]

Anatomy photo:41:11-0204 at the SUNY Downstate Medical Center - "The Female Perineum: Muscles of the Superficial Perineal Pouch"
figures/chapter_38/38-4.HTM - Basic Human Anatomy at Dartmouth Medical School

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

UpToDate Contents

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1. 前庭神経炎および内耳炎 vestibular neuritis and labyrinthitis
2. 前庭神経鞘腫（聴神経腫） vestibular schwannoma acoustic neuroma
3. 回転性めまいの治療 treatment of vertigo
4. 回転性めまい患者の評価 evaluation of the patient with vertigo
5. 良性発作性頭位めまい症 benign paroxysmal positional vertigo

English Journal

The relationship between jugular bulb position and jugular bulb related inner ear dehiscence: a retrospective analysis.

Park JJ1, Shen A2, Loberg C3, Westhofen M2.
American journal of otolaryngology.Am J Otolaryngol.2014 Dec 24. pii: S0196-0709(14)00301-9. doi: 10.1016/j.amjoto.2014.12.006. [Epub ahead of print]
OBJECTIVE: High jugular bulb (HJB) can erode inner ear structures creating a jugular bulb related inner ear dehiscence (JBID). The aim of this study was to analyze the relationship between the position of jugular bulb (JB) and JBID using high-resolution computed tomography (HRCT).MATERIAL AND METHOD
PMID 25701459

Endovascular treatment of symptomatic vestibular aqueduct dehiscence as a result of jugular bulb abnormalities.

Thénint MA1, Barbier C2, Hitier M3, Patron V3, Saleme S4, Courthéoux P5.
Journal of vascular and interventional radiology : JVIR.J Vasc Interv Radiol.2014 Nov;25(11):1816-20. doi: 10.1016/j.jvir.2014.07.013. Epub 2014 Oct 23.
A new endovascular treatment consisting of stent-assisted coil implantation is described for jugular bulb abnormalities causing symptomatic vestibular aqueduct dehiscence. Three patients presenting with vertigo associated with pulsatile tinnitus or hearing loss were treated. This technique cured the
PMID 25442142

High jugular bulb in a cohort of patients with definite Ménière's disease.

Redfern RE1, Brown M1, Benson AG2.
The Journal of laryngology and otology.J Laryngol Otol.2014 Sep;128(9):759-64. doi: 10.1017/S0022215114001820. Epub 2014 Aug 27.
OBJECTIVE: To determine the incidence of high jugular bulb in a group of patients with definite Ménière's disease, and to investigate whether the position or size of the jugular bulb is significantly different in the affected ear than in the unaffected ear.METHODS: Retrospective review of patient
PMID 25160778

Japanese Journal

変動性難聴をきたし内リンパ水腫が推定された高位頸静脈球小児例

水田啓介,林寿光,西堀丈純,久世文也,青木光広,伊藤八次,小塩勝博
Otology Japan 23(5), 873-877, 2013
高位頸静脈球による前庭水管骨欠損があり、変動性難聴とめまいを生じた小児例を報告する。症例は13歳、男児。平成21年2月頃に左難聴を訴え、耳鼻咽喉科受診し、左軽度低音障害型感音難聴を認めた。その後低音域で中等度難聴に悪化し、3月に当科へ紹介され初診した。左鼓膜に青色の腫瘤が透見された。左側の側頭骨CTで高位頸静脈球が前庭水管・後半規管の骨欠損を伴い、鼓室への突出を認めた。その後浮動感やふらつき、長距 …
NAID 130005065215

経迷路聴神経腫瘍手術におけるナビゲーション

平海晴一,金丸眞一,三浦誠,伊藤壽一,小松崎篤
耳鼻咽喉科展望 51(5), 336-338, 2008
… The translabyrinthine approach for vestibular schwannomas provides full access to the internal auditory canal, enabling total tumor removal. … In the safe manipulation of tumor inside the internal auditory canal, removal of the bone between the internal auditory canal and jugular bulb is important. … The anatomical variation of the jugular bulb is sometimes makes this challenging. … We applied an image-guidance system in the detection of the jugular bulb in three patients. …
NAID 130004546250

聴神経鞘腫に対する後頭下アプローチ : 解剖と画像所見に基づいた手術手技(<特集>聴神経腫瘍の治療)

田中雄一郎,石坂繁寿,原洋助,小林辰也,児玉邦彦,宮原孝寛,草野義和,後藤哲哉,柿澤幸成,酒井圭一,本郷一博
脳神経外科ジャーナル 16(2), 90-95, 2007-02-20
ガンマナイフ時代に外科的治療を担う脳神経外科医には,腫瘍を全摘出し,かつ新たな神経症状を出さないことが外科的治療の目標となる.本稿では,後頭下アプローチにおいて遭遇するさまざまな構造物,すなわち導出静脈,弓下動脈,内リンパ嚢,前庭水管,総脚,頸静脈球,蝸牛水管などの画像所見に言及し,それらに関連した手術手技を解説した.本アプローチは脳神経外科手術の最も基本的なアプローチの一つであるが,日進月歩の神 …
NAID 110006164350

「前庭球」

Vestibular bulbs
	; The internal anatomy of the human vulva, with the clitoral hood and labia minora indicated as lines
	; Genital organs of female.; 1 - vaginal opening; 2 - Bartholin's glands; 3 - bulbus vestibuli; 4 - vagina; 5 - uterus (womb); 6 - ovaries; 7 - Fallopian tubes; 8 - bladder; 9 - clitoris
Latin	bulbus vestibuli vaginae
Gray's	p.1266
Artery	artery of bulb of vestibule
Vein	vein of bulb of vestibule
Lymph	superficial inguinal lymph nodes

　　[★]

英: vestibular bulb (KH), bulb of vestibule (Z)
ラ: bulbus vestibuli
関: 腟

図：KH.257 N.361
男性の尿道球に相当
- 前庭球が正中ので癒合したものが尿道球と考えることができるかも
球海綿体筋に完全に覆われている
- 男性の場合も尿道球は球海綿体筋に完全に覆われている

参考

1. シェーマ

vestibular bulb

http://www.edoctoronline.com/media/19/photos_CCC6A91C-9C35-477A-9104-46FB401CB0C1.jpg

D vestibular bulb;

http://www.elsevierimages.com/image/25247.htm

「bulb」

　　[★]

n.

球、(植物)鱗茎

関: ball、globe、globus、sphere、olfactory bulb

「vestibular」

　　[★]

adj.

前庭の

関: vestibule、vestibulo

[1] Chalker, Rebecca (2000). The Clitoral Truth. Seven Seas Press. p. 200. ISBN 1-58322-473-4.

リンク元	「前庭球」
関連記事	「bulb」「vestibular」

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