Overview
Summary
The middle meningeal artery is the principal supply of the supratentorial dura, and the accessory meningeal artery reaches the dura of the cavernous region. The middle meningeal artery arises from the first part of the maxillary artery and enters the skull through the foramen spinosum; the accessory meningeal artery arises from the maxillary or middle meningeal artery and usually enters through the foramen ovale. Middle meningeal variants follow from the embryonic stapedial system, including an ophthalmic origin; the accessory meningeal origin varies with the course of the maxillary artery. The same development explains the anastomoses that matter at angiography: the petrous branch and the facial nerve supply, cavernous and accessory branches and the inferolateral trunk, orbital branches and the ophthalmic artery. Embolisation for chronic subdural haematoma is covered on that condition page.
Takeaways
- 1
The middle meningeal artery usually arises from the maxillary artery and enters through the foramen spinosum; an ophthalmic origin occurs .
- 2
The middle meningeal petrous branch and the stylomastoid artery form the facial arcade, the facial nerve's main supply .
- 3
Orbital branches connect the middle meningeal and ophthalmic arteries; how often they are found depends on the detection method .
Start here
- Middle Meningeal Artery: Anatomy and VariationsBonasia 2020 · AJNR Am J Neuroradiol
- Stapedial Artery: From Embryology to Different Possible Adult ConfigurationsBonasia 2020 · AJNR Am J Neuroradiol
- Dangerous extracranial–intracranial anastomoses and supply to the cranial nerves: vessels the neurointerventionalist needs to knowGeibprasert 2009 · AJNR
Summary
The middle meningeal artery is the principal supply of the supratentorial dura, and the accessory meningeal artery reaches the dura of the cavernous region. The middle meningeal artery arises from the first part of the maxillary artery and enters the skull through the foramen spinosum; the accessory meningeal artery arises from the maxillary or middle meningeal artery and usually enters through the foramen ovale. Middle meningeal variants follow from the embryonic stapedial system, including an ophthalmic origin; the accessory meningeal origin varies with the course of the maxillary artery. The same development explains the anastomoses that matter at angiography: the petrous branch and the facial nerve supply, cavernous and accessory branches and the inferolateral trunk, orbital branches and the ophthalmic artery. Embolisation for chronic subdural haematoma is covered on that condition page.
Takeaways
- 1
The middle meningeal artery usually arises from the maxillary artery and enters through the foramen spinosum; an ophthalmic origin occurs .
- 2
The middle meningeal petrous branch and the stylomastoid artery form the facial arcade, the facial nerve's main supply .
- 3
Orbital branches connect the middle meningeal and ophthalmic arteries; how often they are found depends on the detection method .
Start here
- Middle Meningeal Artery: Anatomy and VariationsBonasia 2020 · AJNR Am J Neuroradiol
- Stapedial Artery: From Embryology to Different Possible Adult ConfigurationsBonasia 2020 · AJNR Am J Neuroradiol
- Dangerous extracranial–intracranial anastomoses and supply to the cranial nerves: vessels the neurointerventionalist needs to knowGeibprasert 2009 · AJNR