Stylomastoid foramen

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Bone: Stylomastoid foramen
Base of skull. Inferior surface. Pink region is temporal bone, and stylomastoid foramen is in black circle at center of pink region.
Left temporal bone. Inferior surface. (Stylomastoid foramen is third label from the bottom on the left.)
Latin foramen stylomastoideum
Gray's subject #34 144
Dorlands/Elsevier f_12/12373728

Between the styloid and mastoid processes of the temporal bone is the stylomastoid foramen

It is the termination of the facial canal, and transmits the facial nerve and stylomastoid artery.


Bell's palsy can result from inflammation of the facial nerve where it leaves the skull at the stylomastoid foramen. Patients with Bell's palsy appear with facial drooping on the affected side.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.


 This musculoskeletal system article is a stub. You can help Wikipedia by expanding it.
v • d • e
Bones of head and neck: the cranium
Occipital Foramen magnum - Squama occipitalis (Inion - Nuchal lines - Planum occipitale - Planum nuchale - Cruciform eminence - Internal occipital protuberance - Sagittal sulcus - Internal occipital crest)
Lateral parts (Occipital condyle - Hypoglossal canal - Condyloid fossa - Condylar canal - Jugular process - Jugular tubercle) - Basilar part (Pharyngeal tubercle)
Parietal Parietal eminence - Temporal line - Parietal foramen
Frontal Squama frontalis (Frontal suture - Frontal eminence - Superciliary arches - Glabella - Supraorbital foramen - Zygomatic process - Sagittal sulcus - Frontal crest - Foramen cecum) - Pars orbitalis (Ethmoidal notch - Lacrimal fossa - Trochlear fovea - Posterior ethmoidal foramen - Anterior ethmoidal foramen - Frontal sinus - Frontonasal duct)
Temporal Squama temporalis (Articular tubercle - Suprameatal triangle - Mandibular fossa - Petrotympanic fissure) - Mastoid portion (Mastoid foramen - Mastoid process - Mastoid notch - Occipital groove - Sigmoid sulcus - Mastoid antrum) - Petrous portion (Facial canal - Hiatus of the facial canal - Internal auditory meatus - Subarcuate fossa - Carotid canal - Aqueduct of cochlea - Jugular fossa - Inferior tympanic canaliculus - Mastoid canaliculus - Styloid process - Stylomastoid foramen - Petrosquamous suture) - Tympanic part (Suprameatal spine) - Zygomatic process
Sphenoid Body Superior surface (Ethmoidal spine, Chiasmatic groove, Optic foramen, Sella turcica, Fossa hypophyseos, Middle clinoid process, Dorsum sellae, Posterior clinoid processes, Petrosal process, Clivus) - Lateral surface (Carotid groove - Sphenoidal lingula) - Anterior surface (Sphenoidal sinuses) - Great wings (Spine, Foramen rotundum, Foramen ovale, Foramen Vesalii, Foramen spinosum, Infratemporal crest, Sulcus tubae auditivae) - Small wings (Superior orbital fissure, Anterior clinoid process, Optic foramen) - Pterygoid processes (Pterygoid fossa, Scaphoid fossa, Lateral pterygoid plate, Medial pterygoid plate, Pterygoid canal, Pterygoid hamulus) - Sphenoidal conchae
Ethmoid Cribriform plate (Crista galli) - Perpendicular plate - Labyrinth (Ethmoid sinus) - Lateral surface Lamina papyracea - Uncinate process - Medial surface Middle nasal concha - Superior meatus - Superior nasal concha - Middle meatus
v • d • e
Foramina of the skull (and canals and fissures)
Foramina cecum - ethmoidal (anterior, posterior) - incisive - jugular - lacerum - magnum - mandibular - mastoid - mental - optic - orbital (infraorbital, supraorbital) - ovale - palatine (greater, lesser) - parietal - rotundum - sphenopalatine - spinosum - stylomastoid - zygomaticofacial - zygomaticotemporal
Canals carotid - condylar - hypoglossal - incisive - pterygoid
Fissures orbital (inferior, superior) - petrotympanic
other external acoustic meatus - internal acoustic meatus - cribriform plate
Retrieved from "http://en.wikipedia.org/wiki/Stylomastoid_foramen"
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