Posterior meningeal artery

Posterior meningeal artery is a small artery that supplies blood to the dura mater, the outermost layer of the meninges. The meninges are the protective coverings of the brain and spinal cord. The posterior meningeal artery is a branch of the ascending pharyngeal artery, which is itself a branch of the external carotid artery.

Anatomy

The posterior meningeal artery arises from the ascending pharyngeal artery. It ascends to the jugular foramen, a large opening in the base of the skull, and enters the cranial cavity. Here, it supplies the dura mater and the calvaria, the upper, domed part of the skull.

Clinical significance

Damage to the posterior meningeal artery can lead to a subdural hematoma, a collection of blood between the dura mater and the underlying arachnoid mater. This can cause increased intracranial pressure, leading to symptoms such as headache, nausea, vomiting, and altered mental status. Treatment typically involves surgical intervention to remove the hematoma and stop the bleeding.

See also

• Anterior meningeal artery
• Middle meningeal artery

References

Posterior meningeal artery Resources
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