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The stylomastoid artery enters the stylomastoid foramen and supplies the tympanic cavity, the tympanic antrum and mastoid cells, and the semicircular canals.
In the young subject a branch from this vessel forms, with the anterior tympanic artery from the internal maxillary, a vascular circle, which surrounds the tympanic membrane, and from which delicate vessels ramify on that membrane.
It anastomoses with the superficial petrosal branch of the middle meningeal artery by a twig which enters the hiatus canalis facialis.
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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 As such, some of the information contained herein may be outdated.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.
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Arteries of head and neck |
COMMON CAROTID, EXTERNAL CAROTID: Anterior: superior thyroid (superior laryngeal) - lingual (sublingual)
facial: cervical branches (ascending palatine - tonsillar - submental - glandular) - 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) - anterior auricular - frontal - parietal
Terminal, maxillary 1st part: anterior tympanic - deep auricular - middle meningeal (superior tympanic) - accessory meningeal - inferior alveolar (mylohyoid)
Terminal, maxillary 2nd part: deep temporal - pterygoid branches - masseteric - buccal
Terminal, maxillary 3rd part: posterior superior alveolar - infraorbital (anterior superior alveolar) - descending palatine - artery of the pterygoid canal - sphenopalatine
INTERNAL CAROTID: cervical portion - petrous portion (Vidian, caroticotympanic) - cavernous portion (ophthalmic)
orbital group: lacrimal - supraorbital - posterior ethmoidal - anterior ethmoidal - medial palpebral - supratrochlear - dorsal nasal - ocular group: central retinal - ciliary (short posterior, long posterior, anterior) - superior hypophysial - inferior hypophyseal
cerebral portion: anterior cerebral - anterior communicating - middle cerebral - posterior communicating - anterior choroidal - circle of Willis
SUBCLAVIAN: vertebral: meningeal branches - posterior spinal - anterior spinal - posterior inferior cerebellar - basilar (pontine - labyrinthine - anterior inferior cerebellar - superior cerebellar - posterior cerebral)
thyrocervical trunk: inferior thyroid (inferior laryngeal, tracheal, esophageal, ascending cervical) - suprascapular - transverse cervical - dorsal scapular
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