WordNet

a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix (同)pessary, contraceptive diaphragm
a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically" (同)stop
electro-acoustic transducer that vibrates to receive or produce sound waves
(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration (同)midriff
of or relating to the urinary and reproductive systems

PrepTutorEJDIC

横隔膜 / (一般に仕切りとなる)隔膜,仕切板 / (電話機などの)振動板 / (カメラなどの)絞り / (避妊用)ペッサリー
泌尿生殖器の

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/11/03 17:15:31」(JST)

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Older texts have asserted the existence of a urogenital diaphragm, also called the triangular ligament, which was described as a layer of the pelvis that separates the deep perineal sac from the upper pelvis, lying between the inferior fascia of the urogenital diaphragm (perineal membrane) and superior fascia of the urogenital diaphragm.

While this term is used to refer to a layer of the pelvis that separates the deep perineal sac from the upper pelvis, such a discrete border of the sac probably does not exist.^[1]^[2]^[3]^[4]^[5]

While it has no official entry in Terminologia Anatomica, the term is still used occasionally to describe the muscular components of the deep perineal pouch. The urethra and the vagina, though part of the pouch, are usually said to be passing through the urogenital diaphragm, rather than part of the diaphragm itself.^[2]

Some researchers still assert that such a diaphragm exists,^[6] and the term is still used in the literature.^[7]

The urethral diaphragm is an anatomic landmark used in radiologic and urologic classification of urethral injury. Specifically, when a retrograde urethrogram demonstrates extension of contrast from the proximal bulbous urethra into the perineum, there is an increase of grading of the injury from a Type 2 to a Type 3 classification.

The term "urogenital diaphragm" is often confused with the pelvic diaphragm (pelvic floor), which is a true diaphragm supporting many of the pelvic organs.^[8]

References

^ Kaye K, Milne N, Creed K, van der Werf B (1997). "The 'urogenital diaphragm', external urethral sphincter and radical prostatectomy.". Aust N Z J Surg. 67 (1): 40–4. PMID 9033375. doi:10.1111/j.1445-2197.1997.tb01892.x.
^ ^a ^b "Chapter 38: The perineal region and external genitalia". Retrieved 2007-12-09.
^ Oelrich TM (1980). "The urethral sphincter muscle in the male". Am. J. Anat. 158 (2): 229–46. PMID 7416058. doi:10.1002/aja.1001580211.
^ Mirilas P, Skandalakis JE (2004). "Urogenital diaphragm: an erroneous concept casting its shadow over the sphincter urethrae and deep perineal space". J. Am. Coll. Surg. 198 (2): 279–90. PMID 14759786. doi:10.1016/j.jamcollsurg.2003.07.022.
^ Dorschner W, Biesold M, Schmidt F, Stolzenburg JU (1999). "The dispute about the external sphincter and the urogenital diaphragm". J. Urol. 162 (6): 1942–5. PMID 10569543. doi:10.1016/S0022-5347(05)68074-3.
^ Herschorn S (2004). "Female pelvic floor anatomy: the pelvic floor, supporting structures, and pelvic organs". Rev Urol. 6 Suppl 5: S2–S10. PMC 1472875 . PMID 16985905.
^ Hruby S, Ebmer J, Dellon AL, Aszmann OC (2005). "Anatomy of pudendal nerve at urogenital diaphragm--new critical site for nerve entrapment". Urology. 66 (5): 949–52. PMID 16286101. doi:10.1016/j.urology.2005.05.032.
^ Maclean, Allan; Reid, Wendy (2011). "40". In Shaw, Robert. Gynaecology. Edinburgh New York: Churchill Livingstone/Elsevier. pp. 599–612. ISBN 978-0-7020-3120-5; Access provided by the University of Pittsburgh

UpToDate Contents

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1. 女性泌尿生殖器の外科解剖学 surgical female urogenital anatomy
2. 女性における尿生殖路瘻 urogenital tract fistulas in women
3. バリア避妊法：ペッサリー barrier contraception diaphragm
4. 横隔膜ペーシング：患者選択、評価、植込み、および合併症 pacing the diaphragm patient selection evaluation implantation and complications
5. 成人における横隔膜損傷の認識およびマネージメント recognition and management of diaphragmatic injury in adults

English Journal

Female genital mutilation and cutting: An anatomical review and alternative rites.

Puppo V1.
Clinical anatomy (New York, N.Y.).Clin Anat.2017 Jan;30(1):81-88. doi: 10.1002/ca.22763. Epub 2016 Sep 6.
The World Health Organization reports that more than 200 million women currently alive have been subjected to female genital mutilation/cutting (FGM/C) worldwide, and three million girls continue to be at risk each year. FGM/C today is women's business. The vulva is formed by the labia majora and th
PMID 27596700

Adenoid cystic carcinoma of the urethra/Cowper's gland with concurrent high-grade prostatic adenocarcinoma: a detailed clinicopathologic case report and review of the literature.

Zhang M1, Pettaway C2, Vikram R3, Tamboli P4.
Human pathology.Hum Pathol.2016 Dec;58:138-144. doi: 10.1016/j.humpath.2016.07.027. Epub 2016 Aug 20.
Primary adenoid cystic carcinoma of the urethra is uncommon with only 9 cases reported in the medical literature; all tumors arose from Cowper's glands. Herein, we report the histological features and immunohistochemical characteristics of 1 patient with primary adenoid cystic carcinoma involving th
PMID 27554206

Japanese Journal

経会陰的に修復を行った腹会陰式直腸切断術後会陰ヘルニアの2例

日本臨床外科学会雑誌 76(5), 1221-1226, 2015
NAID 130005110818

経尿道的開窓術を施行した成人Cowper's syringoceleの1例

泌尿器科紀要 58(7), 355-359, 2012-07
NAID 40019362573

「尿生殖隔膜」

Urogenital diaphragm
	Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front.
	Vertical section of bladder, penis, and urethra.
Details
Artery	Branches of internal pudendal artery
Vein	Branches of internal pudendal veins
Nerve	Branches of perineal nerve
Latin	Diaphragma urogenitale
	Anatomical terminology [edit on Wikidata]