Internal auditory artery

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Artery: Internal auditory artery
Diagram of the arterial circulation at the base of the brain.
Latin a. auditiva interna
Gray's subject #148 580
Source basilar artery

The internal auditory artery (auditory artery, labyrinthine artery), a long slender branch of the basilar artery, arises from near the middle of the artery; it accompanies the acoustic nerve through the internal acoustic meatus, and is distributed to the internal ear.

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 As such, some of the information contained herein may be outdated.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.

Arteries of head and neckedit

EXTERNAL CAROTID: Anterior: superior thyroid - superior laryngeal - lingual (sublingual)

facial: cervical branches (ascending palatine - tonsillar - submental) - facial branches (inferior labial - superior labial - lateral nasal - angular)

Posterior and ascending: occipital - posterior auricular - stylomastoid - ascending pharyngeal (meningeal branches)
Terminal: superficial temporal - transverse facial - middle temporal (zygomaticoörbital) - parietal branch
internal maxillary - 1st part: anterior tympanic - deep auricular - middle meningeal - superior tympanic - accessory meningeal - inferior alveolar - lingual
2nd part: deep temporal - masseteric - buccinator - posterior superior alveolar
3rd part: infraorbital - descending palatine - artery of the pterygoid canal - sphenopalatine | (Gray's s144)

INTERNAL CAROTID: cervical portion - petrous portion - cavernous portion
ophthalmic - orbital group: lacrimal - supra-orbital - posterior ethmoidal - anterior ethmoidal - medial palpebral - supratrochlear - dorsal nasal
ocular group: central retinal - ciliary
cerebral portion: anterior cerebral - anterior communicating - middle cerebral - posterior communicating - anterior choroidal - circle of Willis | (Gray's s146 - Gray's s147)

SUBCLAVIAN: vertebral: meningeal branches - posterior spinal - anterior spinal - posterior inferior cerebellar - basilar (internal auditory - anterior inferior cerebellar - superior cerebellar - posterior cerebral)
thyrocervical trunk: inferior thyroid - inferior laryngeal - ascending cervical - suprascapular - transverse cervical - dorsal scapular
internal thoracic: musculophrenic - anterior intercostal - pericardiacophrenic - superior epigastric
costocervical trunk: highest intercostal, deep cervical | (Gray's s148)