The anterior meningeal arteries are branches of the ethmoidal arteries.
The middle meningeal artery is a branch of the maxillary artery. It enters the middle cranial fossa through the foramen spinosum and divides into anterior and posterior branches:
The anterior branch passes in an almost vertical direction to reach the vertex of the skull, crossing the pterion during its course.
The posterior branch passes in a posterosuperior direction, supplying this region of the middle cranial fossa.