Olfactory foramina

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Olfactory foramina

Ethmoid bone from above.

Base of the skull. Upper surface.
Latin	foramina cribrosa ossis ethmoidalis

The olfactory foramina are holes in the cribriform plate which transmit the olfactory nerves.

[edit] External links

http://bio.winona.edu/dapkus/211/Handouts/foramina.htm

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Bones of head and neck: the neurocranium of the skull (TA A02.1.01–07, GA 2.129–155)

Squama	external (Inion/External occipital protuberance, Nuchal lines) · planes (Occipital, Nuchal) · internal (Cruciform eminence, Internal occipital protuberance, Sagittal sulcus, Internal occipital crest)

Lateral parts	Condyle (Condyloid fossa, Condylar canal) · Hypoglossal canal · jugular (Jugular process, Jugular tubercle)

Basilar part	Pharyngeal tubercle

Other	Foramen magnum (Basion, Opisthion)

Parietal eminence · Temporal line · Parietal foramen

Squama	Frontal suture · Frontal eminence · external (Superciliary arches, Glabella) · foramina (Supraorbital, Cecum) · Zygomatic process · internal (Sagittal sulcus, Frontal crest)

Orbital part	Ethmoidal notch · Fossa for lacrimal gland · Trochlear fovea · Frontal sinus · Frontonasal duct

Squama	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

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 for auditory tube

Small wings	Superior orbital fissure · Anterior clinoid process · Optic canal

Pterygoid processes	fossae (Pterygoid, Scaphoid) · pterygoid plates (Lateral, Medial) · Pterygoid canal · Hamulus

Other	Body · Sphenoidal conchae

Plates	Cribriform plate (Crista galli, Olfactory foramina) · Perpendicular plate

Surfaces	Lateral surface Orbital lamina · Uncinate process Medial surface Superior nasal concha · Superior meatus · Middle nasal concha · Middle meatus

Labyrinth	Ethmoid sinus · ethmoidal foramina (Posterior, Anterior)

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

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

Bones 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

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

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

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

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