Mental foramen

Mental foramen: Bone: Mental foramen

Mandible. Outer surface. Side view. (Mental foramen visible at left.)

Latin foramen mentale

Gray's subject #44 172

The mandibular incisive canal (indicated here by coral green arrows) continuing anteriorly (to the right) from the mandibular canal (purple arrows) after the mental foramen (light green circle).

The mental foramen is one of two holes ("foramina") located on the anterior surface of the mandible. It permits passage of the mental nerve and vessels. The mental foramen descends slightly in edentulous individuals^[1].

Contents

1 Variations

2 Additional images

3 References

4 External links

Variations

The most frequent position (63%) of the mental foramen is in line with the longitudinal axis of the 2nd premolar tooth. Multiple mental foramina are observed in 17% of the sides. Only (4%) of the mandibles show bilateral multiple mental foramina. The majority of the multiple foramina are unequal in size: a single large foramen while the others are small (satellite) foramina. An incisive mental foramen is observed in 1% of the sides[1].

Additional images

Side view of the skull.

The skull from the front.

Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.

Mandibular division of the trifacial nerve.

The permanent teeth, viewed from the right.

References

^ Soikkonen K, Wolf J, Ainamo A, Xie Q. (November 1995). "Changes in the position of the mental foramen as a result of alveolar atrophy". J Oral Rehabil. 22 (11): 831–3. doi:10.1111/j.1365-2842.1995.tb00230.x. PMID 8558356.

External links

cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (V)

Roche Lexicon - illustrated navigator, at Elsevier 34256.000-1

Roche Lexicon - illustrated navigator, at Elsevier 34256.000-2

SUNY - lateral view

SUNY - frontal view

Diagram at uni-mainz.de

v · d · eBones of head and neck: the facial skeleton of the skull (TA A02.1.08–15, GA 2.156–177)

Maxilla

Surfaces

Anterior: fossae (Incisive fossa, Canine fossa) · Infraorbital foramen · Anterior nasal spine

Infratemporal: Alveolar canals · Maxillary tuberosity

Orbital: Infraorbital groove · Infraorbital canal
Nasal: Greater palatine canal

Processes

Zygomatic process

Frontal process (Agger nasi, Anterior lacrimal crest)

Alveolar process
Palatine process (Incisive foramen, Incisive canals, Foramina of Scarpa, Incisive bone, Anterior nasal spine)

Other

Body of maxilla · Maxillary sinus

Zygomatic
Orbital process (Zygomatico-orbital) · Temporal process (Zygomaticotemporal) · Lateral process (Zygomaticofacial)

Palatine

Fossae

Pterygopalatine fossa · Pterygoid fossa

Plates

Horizontal plate (Posterior nasal spine) · Perpendicular plate (Greater palatine canal, Sphenopalatine foramen, Pyramidal process)

Processes

Orbital · Sphenoidal

Mandible

Body

external surface (Symphysis menti, Lingual foramen, Mental protuberance, Mental foramen, Mandibular incisive canal) · internal surface (Mental spine, Mylohyoid line, Sublingual fovea, Submandibular fovea) · Alveolar part of mandible

Ramus

Mylohyoid groove (Mandibular canal, Lingula) · Mandibular foramen · Angle
Coronoid process · Mandibular notch · Condyloid process · Pterygoid fovea

Minor/
nose

Nasal bone: Internasal suture · Nasal foramina

Inferior nasal concha: Ethmoidal process · Maxillary process

Vomer: Vomer anterior · Synostosis vomerina · Vomer posterior (Wing)
Lacrimal: Posterior lacrimal crest · Lacrimal groove · Lacrimal hamulus

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

v · d · eBones of head and neck: Foramina of the skull (and canals, fissures, meati, and hiati) (TA A02.1.00.053–097, GA 2.178–199)

Anterior cranial fossa
to Orbit: ethmoidal foramina (anterior, posterior)
to Nasal cavity: olfactory foramina (CN-I) · foramen cecum

Middle cranial fossa

to Orbit: optic canal (CN-II) · superior orbital fissure (CN-III,IV,V1,VI)

to Pterygopalatine fossa: foramen rotundum (CN-V2) · pterygoid canal

to Infratemporal fossa: foramen ovale (CN-V3) · foramen spinosum/carotid canal
other: foramen lacerum · hiatus for greater petrosal nerve · hiatus for lesser petrosal nerve · sphenoidal emissary foramen

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

Orbit

to Nasal cavity: nasolacrimal canal

to Face: supraorbital (notch, foramen) · infraorbital (foramen, groove) · zygomatic foramen (-facial, -temporal)

to Pterygopalatine fossa: inferior orbital fissure
other: Inferior orbital fissure · Fossa for lacrimal sac

Pterygopalatine fossa

to Nasal cavity: sphenopalatine foramen

to Oral cavity: greater palatine canal/greater palatine foramen · lesser palatine canals/lesser palatine foramina

to Infratemporal fossa: pterygomaxillary fissure
to Nasopharynx: palatovaginal canal

to Oral cavity: incisive canals · incisive foramen
to Nasal cavity: Foramen vomerinum · Meatus vomerinus · Fissura vomerina · Hiatus vomerinus

Other
external acoustic meatus · mandibular foramen · mental foramen · parietal foramen · petrotympanic fissure · semilunar hiatus

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

Categories:
Foramina of the skull
Musculoskeletal system stubs

Bone: Mental foramen

Mandible. Outer surface. Side view. (Mental foramen visible at left.)
Latin	foramen mentale
Gray's	subject #44 172

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Look at other dictionaries:

mental foramen — n a foramen for the passage of blood vessels and a nerve on the outside of the lower jaw on each side near the chin * * * foramen mentale [TA] an opening on the lateral part of the body of the mandible, opposite the second bicuspid tooth, for… … Medical dictionary
mental foramen — noun Etymology: mental (III) : a foramen for the passage of blood vessels and a nerve on the outside of the lower jaw on each side near the chin … Useful english dictionary
mental foramen — a hole or channel in the mandible leading to the Meckelian fossa … Dictionary of ichthyology
Mental spine — The posterior aspect of the mandible showing the mental spine … Wikipedia
Mental protuberance — Mandible. Outer surface. Side view. (Mental protuberance labeled at bottom left.) … Wikipedia
Mental tubercle — Latin tuberculum mentale mandibulae Gray s subject #44 172 The symphysis menti divides below and encloses a triangular eminence, the mental protuberance, the base of which is depressed in the center but raised on either side to form the mental… … Wikipedia
Mental — Mental, a word referring to aspects of, or things related to, the mind; or in anatomy, the skull, e.g. the mental foramen, can also mean: a slang, pejorative term used to describe people who act like lunatics, which is itself an outdated term for … Wikipedia
mental artery — n a branch of the inferior alveolar artery on each side that emerges from the mental foramen and supplies blood to the chin called also mental branch * * * ramus mentalis arteriae alveolaris inferioris … Medical dictionary
Foramen magnum — Bone: Foramen magnum Occipital bone. Inner surface. Gray s subject #31 129 … Wikipedia
Mental nerve — Nerve: Mental nerve Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Mental nerve visible at bottom right, at chin.) … Wikipedia

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Mental foramen

Contents

Variations

Additional images

References

External links

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Academic Dictionaries and Encyclopedias

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Mental foramen

Contents

Variations

Additional images

References

External links

Look at other dictionaries:

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