錐体鼓室裂。グラーザー裂
WordNet
- break into fissures or fine cracks
- (anatomy) a long narrow slit or groove that divides an organ into lobes
PrepTutorEJDIC
- (細長い)裂け目,亀裂(きれつ)(crack)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/07/05 18:28:06」(JST)
[Wiki en表示]
| Petrotympanic fissure |
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Left temporal bone. Outer surface. (Petrotympanic fissure is labeled at left, fourth from top.)
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The right membrana tympani with the hammer and the chorda tympani, viewed from within, from behind, and from above. (Glaserian fissure labeled at center left.)
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| Latin |
Fissura petrotympanica |
| Gray's |
p.140 |
| Anatomical terms of bone |
The petrotympanic fissure (also known as the squamotympanic fissure) is a fissure in the temporal bone[1] that runs from the temporomandibular joint to the tympanic cavity.[2]
The mandibular fossa is bounded, in front, by the articular tubercle; behind, by the tympanic part of the bone, which separates it from the external acoustic meatus; it is divided into two parts by a narrow slit, the petrotympanic fissure.
It opens just above and in front of the ring of bone into which the tympanic membrane is inserted; in this situation it is a mere slit about 2 mm. in length. It lodges the anterior process and anterior ligament of the malleus, and gives passage to the anterior tympanic branch of the internal maxillary artery.
Contents
- 1 Eponym
- 2 Contents
- 3 Additional Images
- 4 See also
- 5 References
- 6 External links
Eponym
It is also known as the "Glaserian fissure", after Johann Glaser.[3]
Contents
The contents of the fissure include communications of cranial nerve VII to the infratemporal fossa. A branch of cranial nerve VII, the chorda tympani, runs through the fissure to join with the lingual nerve providing special sensory (taste) innervation to the tongue.
Additional Images
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Base of the skull. Arrows indicate petrotympanic fissure.
See also
References
- ^ Petrotympanic+fissure at eMedicine Dictionary
- ^ Eckerdal O (1991). "The petrotympanic fissure: a link connecting the tympanic cavity and the temporomandibular joint". Cranio 9 (1): 15–22. PMID 1843474.
- ^ "Glaserian fissure". Medcyclopaedia. Archived from the original on 2012-02-05. Retrieved 2008-03-07.
External links
- SUNY Figs 30:06-09
- Anatomy photo:30:os-0108 at the SUNY Downstate Medical Center
This article incorporates text from a public domain edition of Gray's Anatomy.
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Bones of head and neck: the neurocranium of the skull (TA A02.1.01–07, GA 2.129–155)
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| Occipital |
| Squama |
- external
- Inion/External occipital protuberance
- External occipital crest
- Nuchal lines
- planes
- internal
- Cruciform eminence
- Internal occipital protuberance
- Sagittal sulcus
- Internal occipital crest
- Groove for transverse sinus
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| Lateral parts |
- Condyle
- Condyloid fossa
- Condylar canal
- Hypoglossal canal
- jugular
- Jugular process
- Jugular tubercle
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| Basilar part |
- Pharyngeal tubercle
- Clivus
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| Other |
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| Parietal |
- Parietal eminence
- Temporal line
- Parietal foramen
- Sagittal sulcus
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| Frontal |
| Squama |
- Frontal suture
- Frontal eminence
- external
- Superciliary arches
- Glabella
- foramina
- Zygomatic process
- internal
- Sagittal sulcus
- Frontal crest
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| Orbital part |
- Ethmoidal notch
- Fossa for lacrimal gland
- Trochlear fovea
- Frontal sinus
- Frontonasal duct
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| Temporal |
| Squama |
- Articular tubercle
- Suprameatal triangle
- Mandibular fossa
- Petrotympanic fissure
- Zygomatic process
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| Mastoid part |
- Mastoid foramen
- Mastoid process (Mastoid cells)
- Mastoid notch
- Occipital groove
- Sigmoid sulcus
- Mastoid antrum (Aditus)
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| Petrous part |
- Carotid canal
- Facial canal (Hiatus)
- Internal auditory meatus
- Cochlear aqueduct
- Stylomastoid foramen
- fossae
- Subarcuate fossa
- Jugular fossa
- canaliculi
- Inferior tympanic
- Mastoid
- Styloid process
- Petrosquamous suture
- (note: ossicles in petrous part, but not part of temporal bone)
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| Tympanic part |
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| Sphenoid |
| Surfaces |
- Superior surface: Sella turcica
- Dorsum sellae
- Tuberculum sellae
- Hypophysial fossa
- Posterior clinoid processes
- Ethmoidal spine
- Chiasmatic groove
- Middle clinoid process
- Petrosal process
- Clivus
- Lateral surface: Carotid groove
- Sphenoidal lingula
- Anterior surface: Sphenoidal sinuses
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| Great wings |
- foramina
- Rotundum
- Ovale
- Vesalii
- Spinosum
- Spine
- Infratemporal crest
- Sulcus for auditory tube
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| Small wings |
- Superior orbital fissure
- Anterior clinoid process
- Optic canal
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Pterygoid
processes |
- fossae
- pterygoid plates
- Pterygoid canal
- Hamulus
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| Other |
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| Ethmoid |
| Plates |
- Cribriform plate
- Crista galli
- Olfactory foramina
- Perpendicular plate
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| Surfaces |
- Lateral surface Orbital lamina
- Uncinate process
- Medial surface Superior nasal concha
- Superior meatus
- Middle nasal concha
- Middle meatus
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| Labyrinth |
- Ethmoid sinus
- ethmoidal foramina
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anat (c/f/k/f, u, t/p, l)/phys/devp/cell
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noco/cong/tumr, sysi/epon, injr
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Bones of head and neck: Foramina of the skull (and canals, fissures, meatus, and hiatus) (TA A02.1.00.053–097, GA 2.178–199)
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| Anterior cranial fossa |
| to Orbit: |
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| to Nasal cavity: |
- olfactory foramina (CN-I)
- foramen cecum
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| Middle cranial fossa |
| to Orbit: |
- optic canal (CN-II)
- superior orbital fissure (CN-III,IV,V1,VI)
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| to Pterygopalatine fossa: |
- foramen rotundum (CN-V2)
- pterygoid canal
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| to Infratemporal fossa: |
- foramen ovale (CN-V3)
- foramen spinosum/carotid canal
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| other: |
- foramen lacerum
- hiatus for greater petrosal nerve
- hiatus for lesser petrosal nerve
- sphenoidal emissary foramen
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| Posterior cranial fossa |
- internal auditory meatus/facial canal/stylomastoid foramen (CN-VII,VIII)
- jugular foramen (CN-IX,X,XI)
- foramen magnum (CN-XI)
- hypoglossal canal (CN-XII)
- condylar canal
- mastoid foramen
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| Orbit |
| to Nasal cavity: |
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| to Face: |
- supraorbital
- infraorbital
- zygomatic foramen
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| to Pterygopalatine fossa: |
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| other: |
- Inferior orbital fissure
- Fossa for lacrimal sac
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| Pterygopalatine fossa |
| to Nasal cavity: |
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| to Oral cavity: |
- greater palatine canal/greater palatine foramen
- lesser palatine canals/lesser palatine foramina
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| to Infratemporal fossa: |
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| to Nasopharynx: |
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| to Oral cavity: |
- incisive canals
- incisive foramen
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| to Nasal cavity: |
- Foramen vomerinum
- Meatus vomerinus
- Fissura vomerina
- Hiatus vomerinus
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| Other |
- external acoustic meatus
- mandibular foramen
- mental foramen
- parietal foramen
- petrotympanic fissure
- semilunar hiatus
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anat (c/f/k/f, u, t/p, l)/phys/devp/cell
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noco/cong/tumr, sysi/epon, injr
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UpToDate Contents
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English Journal
- Petrosquamosal suture and lamina.
- Proctor B, Nielsen E, Proctor C.
- Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.Otolaryngol Head Neck Surg.1981 May-Jun;89(3 Pt 1):482-95.
- The junction of the petrosal and squamosal portions of the temporal lobe has important relationships that are of interest to the otologist. The resultant suture extends from the glaserian fissure across the top of the middle ear cleft and into the mastoid portion of the temporal bone. It may permit
- PMID 6791114
Related Links
- pet·ro·tym·pan·ic fis·sure [TA] a fissure between the tympanic and petrous portions of the temporal bone; it transmits the chorda tympani nerve through a small patent portion, the anterior canaliculus of the chorda tympani. Synonym ...
- Define glaserian fissure. glaserian fissure synonyms, glaserian fissure pronunciation, glaserian fissure translation, English dictionary definition of glaserian fissure. n. 1. A long narrow opening; a crack or cleft. 2. The process of ? ...
★リンクテーブル★
[★]
- 英
- petrotympanic fissure (N)
- ラ
- fissura petrotympanica
- 同
- グラーザー裂 glaserian fissure
- 関
- 錐体鼓室裂
[★]