In approximately half of subjects it branches into an accessory meningeal artery.
The anterior branch, the larger, crosses the great wing of the sphenoid, reaches the groove, or canal, in the sphenoidal angle of the parietal bone, and then divides into branches which spread out between the dura mater and internal surface of the cranium, some passing upward as far as the vertex, and others backward to the occipital region.
The posterior branch curves backward on the squamous part of the temporal bone, and, reaching the parietal bone some distance in front of its mastoid angle, divides into branches which supply the posterior part of the dura mater and cranium.
The branches of the middle meningeal artery are distributed partly to the dura mater, but chiefly to the bones; they anastomose with the arteries of the opposite side, and with the anterior and posterior meningeal arteries. The very smallest distal branches anastomose through the skull with small arterioles from the scalp.
Very rarely the ophthalmic artery may arise as a branch of the middle meningeal artery.
The middle meningeal artery runs in a groove on the inside of the cranium. This can clearly be seen on a lateral skull X-ray, where it may be mistaken for a fracture of the skull. On a dry specimen the groove is easy to see. This means that the artery is easy to study, even in specimens centuries old, and several classifications of the branches have been proposed, e.g. Adachi's classification of 1928.
Sudden appearance of transdural anastomosis from middle meningeal artery to superior cerebellar artery during preoperative embolization of meningioma
Jul 01, 2006; We describe a rare transdural anastomosis to the superior cerebellar artery (SCA) in a 57-year-old man with cavernous sinus...
Research from Akdeniz University, Department of Neurosurgery has provided new information about arteriovenous malformation.
Jan 03, 2011; Researchers detail in 'Multiple middle meningeal artery aneurysms associated with fistulous galenic arteriovenous malformation: a...