Pterygoid_canal : definição de Pterygoid_canal e sinónimos de Pterygoid

Pterygoid canal

Base of skull. Inferior surface. (Sphenoid is yellow.)

Sphenoid bone. Anterior and inferior surfaces. (Pterygoid c. labeled at center left.)
Latin	c. pterygoideus
Gray's	subject #46 180
Artery	artery of the pterygoid canal
Nerve	nerve of pterygoid canal

The pterygoid canal (also vidian canal) is a passage in the skull leading from just anterior to the foramen lacerum in the middle cranial fossa to the pterygopalatine fossa.

1 Structure
2 Contents
3 Additional images
4 External links

Structure

The pterygoid canal runs through the medial pterygoid plate of the sphenoid bone to the back wall of the pterygopalatine fossa.

It transmits the nerve of pterygoid canal, artery of the pterygoid canal and vein of the pterygoid canal.

These three are also known as the Vidian Nerve, Vidian Artery and Vidian Vein.

Additional images

Medial wall of left orbit.

External links

SUNY Figs 22:4b-08
Pterygoid+canal at eMedicine Dictionary
cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (VII)

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

Occipital

Squama	external (Inion/External occipital protuberance, External occipital crest, 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

Parietal eminence · Temporal line · Parietal foramen · Sagittal sulcus

Frontal

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

Temporal

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

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 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

Ethmoid

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)

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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

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