Accessory meningeal artery

Accessory meningeal artery
Plan of branches of maxillary artery (accessory meningeal visible top left)
Plan of branches of maxillary artery
Details
Source	Maxillary artery
Supplies	Meninges
Identifiers
Latin	ramus accessorius arteriae meningeae mediae
TA98	A12.2.05.062
TA2	4432
FMA	79467 49715, 79467
Anatomical terminology [ edit on Wikidata]

The accessory meningeal artery (also accessory branch of middle meningeal artery, pterygomeningeal artery, small meningeal or parvidural branch) is a branch of the maxillary artery that ascends through the foramen ovale to enter the cranial cavity and supply the dura mater of the floor of the middle cranial fossa and of the trigeminal cave, and to the trigeminal ganglion (representing the main source of artierial blood for this ganglion). ^[1]

Structure

Variation

The artery sometimes instead arises from the middle meningeal artery.^{[ citation needed ]}

Nomenclature

Only about 10% of the blood flowing through this artery reaches intracranial structures. ^[2] The remaining blood flow is dispersed to extracranial structures around the infratemporal fossa.^{[ citation needed ]}

Reflecting this fact, Terminologia Anatomica lists entries for both "accessory branch of middle meningeal artery" and "pterygomeningeal artery". ^[3]

References

1. Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 363. ISBN   978-0-7295-3752-0.
2. Vitek J (1989). "Accessory meningeal artery: an anatomic misnomer". AJNR Am J Neuroradiol. 10 (3): 569–73. PMC   8334535 . PMID   2501989.
3. Federative Committee on Anatomical Termi (1998). Terminologia Anatomica: International Anatomical Terminology. Thieme Stuttgart. ISBN   3-13-114361-4.

External links

• Dilenge D, Géraud G (1976). "Accessory meningeal artery". Acta Radiol Suppl. 347 (347_suppl): 63–9. doi:10.1177/0284185175016s34709. PMID   207149. S2CID   31259987.
• lesson4 at The Anatomy Lesson by Wesley Norman (Georgetown University) ( infratempfossaart )