Stylomastoid artery
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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. It is a branch of the posterior auricular artery, and thus part of the external carotid arterial system.
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Stylomastoid artery | |
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Details | |
Source | Posterior auricular artery |
Supplies | Tympanic cavity, tympanic antrum, mastoid cells, semicircular canals |
Identifiers | |
Latin | arteria stylomastoidea |
TA98 | A12.2.05.038 |
TA2 | 4406 |
FMA | 49628 |
Anatomical terminology |
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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.