WordNet

a natural opening or perforation through a bone or a membranous structure (同)hiatus
marine microorganism having a calcareous shell with openings where pseudopods protrude (同)foraminifer

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(骨・植物などの)孔(こう),開口

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/05/11 21:54:03」(JST)

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Between the styloid and mastoid processes of the temporal bone is the stylomastoid foramen

It is the termination of the facial canal, and transmits the facial nerve and stylomastoid artery.

Clinical Relevance

Bell's palsy can result from inflammation of the facial nerve where it leaves the skull at the stylomastoid foramen. Patients with Bell's palsy appear with facial drooping on the affected side.

Additional images

Facial canal
Lateral head anatomy detail.Facial nerve dissection.

External links

SUNY Figs 22:4a-07
Anatomy photo:22:os-0708 at the SUNY Downstate Medical Center
Stylomastoid+foramen at eMedicine Dictionary
Anatomy diagram: 34257.000-1 at Roche Lexicon - illustrated navigator, Elsevier
lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (midearcavity)
Diagram at patientsforum.com

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

This musculoskeletal system article is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

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1. 卵円孔開存 patent foramen ovale
2. 小児における、心房中隔欠損（ASD）の分類および孤立性ASDの臨床的特徴および診断 classification of atrial septal defects asds and clinical features and diagnosis of isolated asds in children
3. 成人における心房中隔異常（PFO、ASD、およびASA）および脳塞栓症のリスク atrial septal abnormalities pfo asd and asa and risk of cerebral emboli in adults
4. 成人における心房中隔欠損症の臨床症状および診断 clinical manifestations and diagnosis of atrial septal defects in adults
5. 成人における脳卒中予防のための心房中隔異常（PFO、ASDおよびASA）の治療 treatment of atrial septal abnormalities pfo asd and asa for prevention of stroke in adults

English Journal

[Peripheral facial palsy as the first symptom of a metastatic bronchogenic carcinoma].

Teschner M1, Durisin M, Mangold A, Lenarz T, Stöver T.
Laryngo- rhino- otologie.Laryngorhinootologie.2006 Jul;85(7):512-6.
PMID 16791767

[Laryngological experiences in treatment of Bell's palsy].

Obrebowski A1, Pruszewicz A.
Neurologia i neurochirurgia polska.Neurol Neurochir Pol.2001;35(4 Suppl):79-85.
PMID 11873619

Macroscopic anatomy of the auditory tube diverticulum (guttural pouch) in the thoroughbred equine--a silicon mold approach.

Manglai D1, Wada R, Endo H, Kurohmaru M, Yoshihara T, Sasaki M, Oikawa M, Hayashi Y.
Okajimas folia anatomica Japonica.Okajimas Folia Anat Jpn.2000 Mar;76(6):335-46.
PMID 10774231

Japanese Journal

Macroscopic Anatomy of the Auditory Tube Diverticulum (Guttural Pouch) in the Thoroughbred Equine:A Silicon Mold Approach

Okajimas Folia Anatomica Japonica 76(6), 335-346, 2000
NAID 130004650536

凍結療法が神経機能に及ぼす影響に関する実験的研究

日本口腔外科学会雑誌 36(11), 2491-2504, 1990
NAID 130001356648

ニホンカモシカ(Capricornis crispus)の骨格に関する研究-4-頭蓋(頭蓋骨・顔面骨)について

信州大学農学部紀要 22(2), p99-138, 1985-12
NAID 120005459972

「茎乳突孔」

Stylomastoid foramen
	Base of skull. Inferior surface. Pink region is temporal bone, and stylomastoid foramen is in black circle at center of pink region.
	Left temporal bone. Inferior surface. (Stylomastoid foramen is third label from the bottom on the left.)
Latin	foramen stylomastoideum
Gray's	p.144
	Anatomical terms of bone