WordNet

of or characteristic of low rank or importance
one of lesser rank or station or quality
having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
lower than a given reference point; "inferior alveolar artery"
of low or inferior quality
of or related to the anus; "anal thermometer"
a stage in psychosexual development when the childs interest is concentrated on the anal region; fixation at this stage is said to result in orderliness, meanness, stubbornness, compulsiveness, etc. (同)anal retentive
any bundle of nerve fibers running to various organs and tissues of the body (同)nervus
control of your emotions; "this kind of tension is not good for my nerves"

PrepTutorEJDIC

(階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
肛門(こうもん)(anus)の
〈C〉『神経』 / 〈C〉《複数形で》『神経過敏』,いらだち / 〈U〉『勇気』,度胸(courage) / 〈U〉《時にa ~》厚かましさ,ずぶとさ;無礼 / 〈C〉葉脈;(昆虫の)翅脈(しみゃく) / 〈人,特に自分〉‘に'力を与える,‘を'元気づける
(次にくる語の発音が母音で始まるときに用いる) / (子音[h]で始まり第1音節に強勢のない語の場合はanを用いることがある.ただし,この場合は[h]を発音しない)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/05/01 20:57:09」(JST)

wiki en

The Inferior rectal nerves (inferior anal nerves, inferior hemorrhoidal nerve) usually branch from the pudendal nerve but occasionally arises directly from the sacral plexus; they cross the ischiorectal fossa along with the inferior hemorrhoidal^{[disambiguation needed]} vessels, toward the anal canal and the lower end of the rectum, and is distributed to the Sphincter ani externus (external anal sphincter, EAS) and to the integument (skin) around the anus.

Branches of this nerve communicate with the perineal branch of the posterior femoral cutaneous and with the posterior scrotal nerves at the forepart of the perineum.

Supplies

Cutaneous innervation below the pectinate line and external anal sphincter.

Additional images

The perineum. The integument and superficial layer of superficial fascia reflected.
Sacral plexus of the right side. (Hemorrhoidal branch of pudic labeled at bottom right.)

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Details at Oklahoma State
Anatomy photo:41:08-0102 at the SUNY Downstate Medical Center - "The Female Perineum: Contents of the Pudendal Canal"
Anatomy figure: 41:04-10 at Human Anatomy Online, SUNY Downstate Medical Center - "Inferior view of female perineum, branches of the internal pudendal artery."
perineum at The Anatomy Lesson by Wesley Norman (Georgetown University) (analtriangle3)
figures/chapter_32/32-2.HTM: Basic Human Anatomy at Dartmouth Medical School
figures/chapter_32/32-3.HTM: Basic Human Anatomy at Dartmouth Medical School

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 肛門括約筋断裂の待機手術による管理 delayed surgical management of the disrupted anal sphincter
2. 甲状腺の外科解剖学 surgical anatomy of the thyroid gland
3. 成人における便失禁 fecal incontinence in adults
4. 肛門癌の臨床的特徴、病期分類、および治療 clinical features staging and treatment of anal cancer
5. 成人における第三脳神経（動眼神経）麻痺 third cranial nerve oculomotor nerve palsy in adults

English Journal

Inferior Gluteal and Other Nerves Associated with Sacrospinous Ligament: A Cadaver Study.

Florian-Rodriguez ME1, Hare A2, Chin K3, Phelan JN4, Ripperda CM2, Corton MM2.
American journal of obstetrics and gynecology.Am J Obstet Gynecol.2016 Jun 22. pii: S0002-9378(16)30368-4. doi: 10.1016/j.ajog.2016.06.025. [Epub ahead of print]
BACKGROUND: Reported rates of gluteal pain following sacrospinous ligament fixation range from 12-55% in the immediate postoperative period and from 4-15% 4-6 weeks postoperatively. The source of gluteal pain is often attributed to injury to the nerve to levator ani or pudendal nerve. The inferior g
PMID 27343565

Surgeons' assessment of internal anal sphincter nerve supply during TaTME - inbetween expectations and reality.

Kneist W1, Hanke L1, Kauff DW1, Lang H1.
Minimally invasive therapy & allied technologies : MITAT : official journal of the Society for Minimally Invasive Therapy.Minim Invasive Ther Allied Technol.2016 Jun 22:1-6. [Epub ahead of print]
BACKGROUND: Intraoperative identification of nerve fibers heading from the inferior rectal plexus (IRP) to the internal anal sphincter (IAS) is challenging. The transanal total mesorectal excision (TaTME) is said to better preserve pelvic autonomic nerves. The aim of this study was to investigate th
PMID 27333465

Transischiorectal fossa approach for resection of pudendal nerve schwannoma: case report.

Chen S1, Gaynor B1, Levi AD1.
Journal of neurosurgery. Spine.J Neurosurg Spine.2016 Jun 17:1-4. [Epub ahead of print]
Pudendal nerve schwannomas are very rare, with only two cases reported in the English-language literature. The surgical approaches described in these two case reports are the transgluteal approach and the laparoscopic approach. The authors present the case of a patient with progressive pelvic pain r
PMID 27314552

Japanese Journal

9. 大腸癌における至適リンパ節郭清 (<特集>リンパ節の癌転移病態と至適郭清)

貞廣荘太郎,石川健二,鈴木俊之,向山小百合,田中洋一,安田聖栄,田島知郎,幕内博康
日本外科学会雑誌 102(6), 497-500, 2001-06-01
NAID 110003944776

肛門周囲無知覚域へ知覚皮弁を移植した仙骨部脊髄々膜瘤の1小児例

牧野駿一,松崎茂,内田広夫,伊東充宏,上田和毅,中川雅裕,佐藤知行,金澤曉太郎
日本小児外科学会雑誌 32(7), 1110-1114, 1996-12-20
… 覚域を持つことが多い.その為,排便管理の遅れがしばしば認められる.排便管理を改善する目的で,肛門周囲無知覚域を持つ一小児例に知覚皮弁を移植したので報告する.右大腿後面で幅8cm,長さ20cm の U 字型の inferior gluteal thigh flap を作成した.この知覚皮弁は下臀動脈下行枝と後大腿皮神経により支持される.肛門縁の3分の2の皮膚を切除し,皮弁を肛門に縫着した.術後,皮弁に痛覚,触覚が保持された.血行も良く皮弁の色調に …
NAID 110002108395

Two flap anoplasty による鎖肛肛門形成術

大西清,丸山優,渡辺聖,平野敬八郎,山口宗之
日本小児外科学会雑誌 32(1), 1-6, 1996-02-20
鎖肛において,良好な排便機能を有する肛門の形成は外科的治療の最終目標である. 近年,恥骨直腸筋係蹄を含む肛門括約筋群の三次元的包括的再建の普及により,その治療成績は機能面において大いに改善した. しかし,便秘,失禁などの排便障害,脱肛,肛門狭窄などの合併症を主訴に来院する症例も未だ散見され,本疾患治療の難しさを物語っているものといえる. これら予防には,前述の直腸部に対する処置のみならず,肛門形成 …
NAID 110002107467

★リンクテーブル★

リンク元	「下直腸神経」
関連記事	「inferior」「anal」「inferio」「nerve」

「下直腸神経」

Inferior anal nerves
	The superficial branches of the internal pudendal artery. (Inferior anal nerves visible but not labeled.)
	Pudendal nerve, its course through the lesser sciatic foramen, and branches, including inferior anal at bottom right.
Details
Innervates	Rectum
Identifiers
Latin	Nervi anales inferiores,; nervi rectales inferiores,; nervus haemorrhoidalis inferior
Dorlands; /Elsevier	n_05/12565191
TA	A14.2.07.038
FMA	75469
	Anatomical terms of neuroanatomy [edit on Wikidata]