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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/15 10:13:01」(JST)
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| Seminal colliculus |
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Seminal vesicle and ampullae of ductus deferentes, seen from the front.
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The male urethra laid open on its anterior (upper) surface.
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| Details |
| Latin |
Colliculus seminalis,
verumontanum |
| Identifiers |
| Gray's |
p.1234 |
Dorlands
/Elsevier |
12265795 |
| TA |
A09.4.02.008 |
| FMA |
74363 |
| Anatomical terminology |
The seminal colliculus (Latin colliculus seminalis), or verumontanum, of the prostatic urethra is a landmark near the entrance of the seminal vesicles. Verumontanum is translated from Latin to mean 'mountain ridge', a reference to the distinctive median elevation of urothelium that characterizes the landmark on magnified views. Embryologically, it is derived from the uterovaginal primordium. The landmark is important in classification of several urethral developmental disorders. The margins of seminal colliculus are the following:
- the orifices of the prostatic utricle
- the slit-like openings of the ejaculatory ducts.
- the openings of the prostatic ducts
Dissection of prostate showing the prostatic urethra with the seminal colliculus on the posterior wall.
Contents
- 1 Posterior urethral valves
- 2 Prostatic utricle
- 3 References
- 4 External links
Posterior urethral valves
The verumontanum is an important anatomic landmark for pathology in a congenital anomaly known as posterior urethral valves, in which there is a developmental obstruction of the urethra in newborn male infants.[1] Urethral carcinoid tumors have been reported at the verumontanum.[2] The structure tends to migrate caudally, or downward, in hypospadia disorders and is then seen in the bulbous, or penile portion of the urethra.[3]
Prostatic utricle
The prostatic utricle, a remnant of the paramesonephric duct, arises from the urethra at the level of the verumontanum and projects posteriorly. This blind ending structure can be associated with hypospadias. This is distinct from a Cowper duct syringocele, which arises at the bulbous urethra.
References
- ^ "Posterior Urethral Valve. Emedicine, Radiology.". eMedicine. July 18, 2010. Retrieved July 18, 2010.
- ^ Maxwell Smith , M Scott Lucia , Priya N Werahera and Francisco G La Rosa Carcinoid tumor of the verumontanum (colliculus seminalis) of the prostatic urethra with a coexisting prostatic adenocarcinoma: a case report Journal of Medical Case Reports 2010, 4:16
- ^ F Ikoma, H Shima. 1991. Caudal migration of the verumontanum. Journal of Pediatric Surgery. 26: 7, 858-861.
External links
- Anatomy photo:44:05-0202 at the SUNY Downstate Medical Center — "The Male Pelvis: The Prostate Gland"
- pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (malebladder)
- figures/chapter_34/34-3.HTM — Basic Human Anatomy at Dartmouth Medical School
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Male reproductive system
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| Internal |
| Seminal tract |
| Testes |
- layers
- Tunica vaginalis
- Tunica albuginea
- Tunica vasculosa
- Appendix
- Mediastinum
- Lobules
- Septa
- Leydig cell
- Sertoli cell
- Blood–testis barrier
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| Spermatogenesis |
- Spermatogonium
- Spermatocytogenesis
- Spermatocyte
- Spermatidogenesis
- Spermatid
- Spermiogenesis
- Spermatozoon
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| Other |
- Seminiferous tubules
- Tubuli seminiferi recti
- Rete testis
- Efferent ducts
- Epididymis
- Paradidymis
- Spermatic cord
- Vas deferens
- Ejaculatory duct
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| Accessory glands |
- Seminal vesicles
- Prostate
- Urethral crest
- Seminal colliculus
- Prostatic utricle
- Ejaculatory duct
- Prostatic sinus
- Prostatic ducts
- Bulbourethral glands
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| External |
| Penis |
- root
- Crus
- Bulb
- Fundiform ligament
- Suspensory ligament
- body
- Corpus cavernosum
- Corpus spongiosum
- glans
- fascia
- Tunica albuginea
- Septum of the penis
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| Urinary tract |
- Internal urethral orifice
- Urethra
- Prostatic
- Intermediate
- Spongy
- Navicular fossa
- External urethral orifice
- Lacunae of Morgagni
- Urethral gland
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| Scrotum |
- layers
- skin
- Dartos
- External spermatic fascia
- Cremaster
- Cremasteric fascia
- Internal spermatic fascia
- Perineal raphe
- Scrotal septum
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Index of reproductive medicine
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| Description |
- Anatomy
- Physiology
- Development
- sex determination and differentiation
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| Disease |
- Infections
- Congenital
- Neoplasms and cancer
- male
- female
- gonadal
- germ cell
- Other
- Symptoms and signs
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| Treatment |
- Procedures
- Drugs
- benign prostatic hypertrophy
- erectile dysfunction and premature ejaculation
- sexual dysfunction
- infection
- hormones
- androgens
- estrogens
- progestogens
- GnRH
- prolactin
- Assisted reproduction
- Birth control
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UpToDate Contents
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English Journal
- Re: Revisiting the Central Gland Anatomy via MRI: Does the Central Gland Extend below the Level of Verumontanum?
- Siegel C.
- The Journal of urology.J Urol.2015 May;193(5):1541-2. doi: 10.1016/j.juro.2015.01.107. Epub 2015 Feb 7.
- PMID 25895766
- Volume and landmark analysis: comparison of MRI measurements obtained with an endorectal coil and with a phased-array coil.
- Mazaheri Y1, Afaq AA2, Jung SI2, Goldman DA3, Wang L2, Aslan H2, Zelefsky MJ4, Akin O2, Hricak H2.
- Clinical radiology.Clin Radiol.2015 Apr;70(4):379-86. doi: 10.1016/j.crad.2014.12.002. Epub 2014 Dec 29.
- AIM: To compare prostate volumes and distances between anatomical landmarks on MRI images obtained with a phased-array coil (PAC) only and with a PAC and an endorectal coil (ERC).MATERIALS AND METHODS: Informed consent was waived for this Health Insurance Portability and Accountability Act-compliant
- PMID 25554540
- Thermoacoustic contrast of prostate cancer due to heating by very high frequency irradiation.
- Patch SK1, Hull D, Thomas M, Griep SK, Jacobsohn K, See WA.
- Physics in medicine and biology.Phys Med Biol.2015 Jan 21;60(2):689-708. doi: 10.1088/0031-9155/60/2/689. Epub 2015 Jan 2.
- Applying the thermoacoustic (TA) effect to diagnostic imaging was first proposed in the 1980s. The object under test is irradiated by high-power pulses of electromagnetic energy, which heat tissue and cause thermal expansion. Outgoing TA pressure pulses are detected by ultrasound transducers and rec
- PMID 25554968
Japanese Journal
- 内分泌療法と放射線療法の併用にて治療を行った前立腺導管癌の1例
- 鈴木 孝尚,新保 斉,栗田 豊 [他]
- 泌尿器科紀要 57(5), 261-264, 2011-05
- … A cystourethroscopic examination revealed a papillary tumor near the verumontanum. …
- NAID 40018816786
- 経尿道的半精阜切除術後に両側精巣上体炎を併発したが, 精液所見の改善したミュラー管〓胞の1例
- 澤田 卓人,岩崎 晧,石塚 榮一 [他],湯村 寧,菅野 ひとみ,小川 毅彦,斎藤 和男,佐藤 和彦,窪田 吉信
- 日本不妊学会雑誌 = Japanese journal of fertility and sterility 48(3), 125-129, 2003-10-01
- NAID 50000286104
- 前立腺導管癌Prostatic duct adenocarcinomaの1例
- 南口 早智子,中嶋 安彬,樋口 佳代子,伏木 悦代,藤原 孝子
- 日本臨床細胞学会雑誌 38(6), 621-622, 1999-11-22
- NAID 110001225219
Related Links
- verumontanum /ve·ru·mon·ta·num/ (ver″u-mon-ta´num) seminal colliculus. verumontanum A part of the prostatic urethra which is a landmark near the entrance of the seminal vesicles. It forms the basis for classifying urethral ...
- Translations of verumontanum. verumontanum synonyms, verumontanum antonyms. Information about verumontanum in the free online English dictionary and encyclopedia. verumontanum - definition of verumontanum by The Free ...
Related Pictures
★リンクテーブル★
[★]
- 英
- seminal colliculus (Z)
- 仏
- veru montanum → verumontanum
- ラ
- colliculus seminalis
- 同
- 精阜
- 関
- 前立腺