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Descending palatine artery

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Artery: Descending palatine artery
Plan of branches of internal maxillary artery. ("Desc. pal." visible in upper right.)
Latin a. palatina descendens
Gray's subject #144 562
Dorlands/Elsevier a_61/12155339

The Descending Palatine Artery descends through the pterygopalatine canal with the anterior palatine branch of the sphenopalatine ganglion, and, emerging from the greater palatine foramen, runs forward in a groove on the medial side of the alveolar border of the hard palate to the incisive canal; the terminal branch of the artery passes upward through this canal to anastomose with the sphenopalatine artery.

Branches are distributed to the gums, the palatine glands, and the mucous membrane of the roof of the mouth; while in the pterygopalatine canal it gives off twigs which descend in the lesser palatine canals to supply the soft palate and palatine tonsil, anastomosing with the ascending palatine artery.

Most sources (including Dorlands) state that the Descending Palatine Artery branches into the "Greater Palatine artery" and "Lesser Palatine artery", but some sources equate the Descending Palatine Artery with the Greater Palantine (see external links for examples.)

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 As such, some of the information contained herein may be outdated.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

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)

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