tilläggsmeningealartären

The tilläggsmeningealartären, often translated as the accessory meningeal artery, is a small arterial branch that arises from the maxillary artery. This artery is notable for its role in supplying blood to the dura mater, the tough outermost membrane of the brain and spinal cord. While it is a consistent anatomical structure, its presence and origin can vary slightly among individuals.

The primary distribution of the tilläggsmeningealartären is to the meninges, particularly in the region of the foramen ovale, through which it passes to reach the cranial cavity. Its branches supply the dura mater in the middle cranial fossa. In some anatomical variations, it may originate from the middle meningeal artery itself, though its more common source is the maxillary artery.

Clinically, the tilläggsmeningealartären is of interest in neurosurgical procedures and in understanding the vascular supply to the meninges. Its contribution to the blood supply of the dura can be relevant in cases of dural arteriovenous fistulas or during surgical interventions that might involve the meningeal vessels. Understanding its precise location and origin is crucial for accurate diagnosis and treatment of conditions affecting the cranial base and meninges. The artery is relatively small, but its consistent presence highlights the intricate vascular network that nourishes the protective layers of the central nervous system.