Mandibular Fossa

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🔍 WikiMed Medical Encyclopedia 🎲 Mandibular fossa

The mandibular fossa is the depression in the temporal bone that articulates with the mandible. In the temporal bone, the mandibular fossa is bounded anteriorly by the articular tubercle and posteriorly by the tympanic portion of the temporal bone, which separates it from the external acoustic meatus. The fossa is divided into two parts by a narrow slit, the petrotympanic fissure (Glaserian fissure).

Mandibular fossa
Left temporal bone. Outer surface. (Mandibular fossa labeled at left, third from the top.)
Base of skull. Inferior surface. (Mandibular fossa labeled at center left. Temporal bone is pink.)
Details
Identifiers
LatinFossa mandibularis
TAA02.1.06.071
FMA75313
Anatomical terms of bone

It is also referred to as the glenoid fossa in dental literature.

See also

  • Temporomandibular joint

References

This article incorporates text in the public domain from page 140 ofthe 20th edition of Gray's Anatomy (1918)

  • Anatomy figure: 22:4b-07 at Human Anatomy Online, SUNY Downstate Medical Center
  • Anatomy photo:27:st-0311 at the SUNY Downstate Medical Center
Neurocranium of the skull
Occipital
Squamous part
  • external
    • Inion/External occipital protuberance
    • Occipital bun
    • External occipital crest
    • Nuchal lines
    • Suprainiac fossa
  • planes
    • Occipital
    • Nuchal
  • internal
    • Cruciform eminence
    • Internal occipital protuberance
    • Internal occipital crest
    • Groove for transverse sinus
Lateral parts
  • Condyle
    • Condyloid fossa
    • Condylar canal
  • Hypoglossal canal
  • jugular
    • Jugular process
    • Jugular tubercle
Basilar part
  • Pharyngeal tubercle
  • Clivus
Other
  • Foramen magnum
    • Basion
    • Opisthion
Parietal
  • Parietal eminence
  • Temporal line
  • Parietal foramen
  • Sagittal sulcus
  • Sagittal keel
  • Sagittal crest
Frontal
Squamous part
  • Frontal suture
  • Frontal eminence
  • external
    • Superciliary arches
    • Glabella
  • foramina
    • Supraorbital foramen
    • Brow ridge
    • Foramen cecum
  • Zygomatic process
  • internal
    • Sagittal sulcus
    • Frontal crest
Orbital part
  • Ethmoidal notch
  • Fossa for lacrimal gland
  • Trochlear fovea
  • Frontal sinus
  • Frontonasal duct
Temporal
Squamous part
  • Articular tubercle
  • Suprameatal triangle
  • Mandibular fossa
  • Petrotympanic fissure
  • Zygomatic process
Mastoid part
  • Mastoid foramen
  • Mastoid process (Mastoid cells)
  • Mastoid notch
  • Occipital groove
  • Sigmoid sulcus
  • Mastoid antrum (Aditus)
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)
Tympanic part
  • Suprameatal spine
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
Great wings
  • foramina
    • Rotundum
    • Ovale
    • Vesalii
    • Spinosum
  • Spine
  • Infratemporal crest
  • Sulcus of auditory tube
Small wings
  • Superior orbital fissure
  • Anterior clinoid process
  • Optic canal
Pterygoidprocesses
  • fossae
    • Pterygoid
    • Scaphoid
  • pterygoid plates
    • Lateral
    • Medial
  • Pterygoid canal
  • Hamulus
Other
  • Body
  • Sphenoidal conchae
Ethmoid
Plates
  • Cribriform plate
    • Crista galli
    • Olfactory foramina
  • Perpendicular plate
Surfaces
  • Lateral surface Orbital lamina
  • Uncinate process
  • Medial surface Supreme nasal concha
  • Superior nasal concha
  • Superior meatus
  • Middle nasal concha
  • Middle meatus
Labyrinth
  • Ethmoid sinus
  • ethmoidal foramina
    • Posterior
    • Anterior
Authority control
  • TA98: A02.1.06.071
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