側頭下窩
WordNet
- largest carnivore of Madagascar; intermediate in some respects between cats and civets (同)fossa cat, Cryptoprocta ferox
- monotypic genus of Madagascar civets closely related to palm civets (同)genus Fossa
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/27 09:16:14」(JST)
[Wiki en表示]
| Infratemporal fossa |
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Left infratemporal fossa.
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| Details |
| Identifiers |
| Latin |
fossa infratemporalis |
Dorlands
/Elsevier |
f_14/12376096 |
| TA |
A02.1.00.024 |
| FMA |
75308 |
| Anatomical terminology
[edit on Wikidata]
|
The infratemporal fossa is an irregularly shaped cavity, situated below and medial to the zygomatic arch. It is not fully enclosed by bone in all directions, and it contains superficial muscles that are visible during dissection after removing skin and fascia: namely, the lower part of the temporalis muscle, the lateral pterygoid, and the medial pterygoid.
Its boundaries may be defined by:
- anteriorly, by the infratemporal surface of the maxilla and the ridge which descends from its zygomatic process
- posteriorly, by the articular tubercle of the temporal and the spina angularis of the sphenoid
- superiorly, by the greater wing of the sphenoid below the infratemporal crest, and by the under surface of the temporal squama, containing the foramen ovale, which transmits the mandibular branch of the trigeminal nerve, and the foramen spinosum, which transmits the middle meningeal artery
- inferiorly, by the medial pterygoid muscle attaching to the mandible
- medially, by the lateral pterygoid plate
- laterally, by the ramus of mandible, which contains the mandibular foramen, leading to the mandibular canal through which the inferior alveolar nerve passes. This also contains the lingula, a triangular piece of bone that overlies the mandibular foramen antero-medially. Finally, the mylohyoid groove descends obliquely transmitting the mylohyoid nerve the only motor branch of the posterior division of the trigeminal nerve.
Contents
- 1 Contents of the infratemporal fossa
- 1.1 Muscles
- 1.2 Vessels
- 1.3 Veins
- 1.4 Nerves
- 2 Communications to nearby spaces
- 3 Additional Images
- 4 Osteology
- 5 References
- 6 External links
Contents of the infratemporal fossa
Muscles
- Lower part of the Temporalis and masseter muscles (origin of massetar muscle:lower margin of the inner surface of zygomatic bone insertion : outer surface of the ramus of the mandible )
- Lateral and medial pterygoid muscles
Vessels
The internal maxillary vessels, consisting of the maxillary artery originating from the external carotid artery and its branches.
Internal maxillary branches found within the infratemporal fossa including the
- middle meningeal artery
- inferior alveolar artery
- deep temporal artery
- buccal artery
Veins
- pterygoid venous plexus
- retromandibular vein
Nerves
Mandibular nerve, inferior alveolar nerve, lingual nerve, buccal nerve, chorda tympani nerve, and otic ganglion.[1]
Mandibular nerve
- Mandibular nerve which is the third branch of the trigeminal nerve (CN V3), also known as the "inferior maxillary nerve" or nervus mandibularis, enters infratemporal fossa from middle cranial fossa through foramen ovale.
Motor branches:
- masseteric nerve
- deep temporal nerve
- lateral pterygoid nerve and medial pterygoid nerve
Its motor fibers innervate all the muscles of mastication plus the mylohyoid, anterior belly of the digastric, and the tensores veli palati and tympani
Sensory innervation:
- meningeal nerve
- buccal nerve
- auriculotemporal nerve
- lingual nerve
- inferior alveolar nerve
- auricle
- external acoustic meatus
- tympanic membrane
- temporal region
- cheek
- skin overlying the mandible (except at the angle of the mandible)
- floor of mouth
- lower teeth
- gingiva
Communications to nearby spaces
- Cranial cavity (through foramen ovale and spinosum).
- Temporal fossa (deep to zygomatic arch).
- pterygopalatine fossa (through pterygomaxillary fissure).
- Orbit (through inferior orbital fissure).
- parapharyngeal space.
Additional Images
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Infratemporal fossa. Lingual and inferior alveolar nerve. Deep dissection. Anterolateral view
Osteology
The foramen ovale and foramen spinosum open on its roof, and the alveolar canals on its anterior wall.
At its upper and medial part are two fissures, which together form a T-shaped fissure, the horizontal limb being named the inferior orbital, and the vertical one the pterygomaxillary.
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ^ Moore, Keith L & Dalley, Arthur (2006). Clinically oriented anatomy (5th ed.), Lippincott Williams & Wilkins.
External links
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Compound structures of skull
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| Neurocranium |
- Calvaria
- Asterion
- Pterion
- Stephanion
- Inion
- Bregma
- Lambda
- Fossae
- anterior
- middle
- posterior
- cranial cavity
- Base of skull
- Fontanelle
- anterior
- posterior
- sphenoidal
- mastoid
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| Facial skeleton |
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| Both |
- dacryon
- zygomatic arch
- temporal fossa
- infratemporal fossa
- pterygomaxillary fissure
- pterygopalatine fossa
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|
UpToDate Contents
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English Journal
- Hydatid cyst in unusual location: Pterygopalatine fossa-infratemporal fossa.
- Şahin B1, Çomoğlu Ş2, Polat B3, Değer K4.
- Auris, nasus, larynx.Auris Nasus Larynx.2015 Dec 3. pii: S0385-8146(15)00243-6. doi: 10.1016/j.anl.2015.11.003. [Epub ahead of print]
- INTRODUCTION: Hydatid Cyst is a zoonotic infection most commonly caused by larvae of the Echinococcus granulosus. Humans are an accidental intermediate host following ingestion of the larvae.CASE REPORT: We report the case of a 16-year-old male patient presenting with a hydatid cyst in the pterygopa
- PMID 26656732
- Management of the cervico-petrous internal carotid artery in class C tympanojugular paragangliomas.
- Bacciu A1, Prasad SC2, Sist N3, Rossi G1, Piazza P4, Sanna M2.
- Head & neck.Head Neck.2015 Nov 28. doi: 10.1002/hed.24284. [Epub ahead of print]
- BACKGROUND: Management of the cervical and petrous internal carotid artery (ICA) is frequently required in Fisch class C tympanojugular paragangliomas (TJPs). The purpose of this study was to discuss the perioperative intervention of the ICA in patients who underwent surgical resection of a TJP.METH
- PMID 26614405
- Endoscopic graduated multiangle, multicorridor resection of juvenile nasopharyngeal angiofibroma: an individualized, tailored, multicorridor skull base approach.
- Liu JK1,2,3, Husain Q2, Kanumuri V2, Khan MN2, Mendelson ZS1, Eloy JA1,2,3.
- Journal of neurosurgery.J Neurosurg.2015 Nov 13:1-11. [Epub ahead of print]
- OBJECT Juvenile nasopharyngeal angiofibromas (JNAs) are formidable tumors because of their hypervascularity and difficult location in the skull base. Traditional transfacial procedures do not always afford optimal visualization and illumination, resulting in significant morbidity and poor cosmesis.
- PMID 26566205
Japanese Journal
- 頸静脈孔傍神経節腫と鑑別困難であった頸静脈孔髄膜腫例
- 林 千江里,古川 正幸,春山 琢男,奈良林 修,飯塚 崇,池田 勝久
- 耳鼻咽喉科臨床 104(8), 553-557, 2011-08-01
- … Meningioma, which usually occurs in the intracranial fossa, occurs only extremely rarely in temporal bone. …
- NAID 10029260321
- Chondroblastoma of the temporal bone
- Hatano Miyako,Donato Giuseppe De,Falcioni Maurizio,Sanna Mario
- Acta Oto-Laryngologica 131(8), 890-895, 2011-08
- … CT and MRI revealed a mass involving the TMJ, infratemporal fossa, and pterygopalatine fossa. … The patient underwent tumor resection via an infratemporal fossa approach type B. …
- NAID 120003308586
Related Links
- Infratemporal fossa By Dr. T. Balasubramanian Synonyms: Ptreygopalatine fossa, infratemporal fossa Definition: Infratemproal fossa is a potential space lying behind the maxilla. Boundaries of ...
- The infratemporal fossa is an irregularly shaped cavity, situated below and medial to the zygomatic arch. It is not fully enclosed by bone in all directions, and it contains superficial muscles that are visible during dissection after ...
Related Pictures
★リンクテーブル★
[★]
- 英
- infratemporal fossa (M)
- ラ
- fossa infra temporalis
- 図：N.12,M.503(骨格)
- 頬骨弓の深層かつ下方で、下顎枝の深層、上顎骨の後方にある