Shell Branch

The meningeal branch (ramus meningeus, pna) is one of the branches of the trigeminal nerve. It arises from the orbital branch of the trigeminal nerve and innervates the dura mater of the middle cranial fossa.

The meningeal branch passes through the superior orbital fissure into the middle cranial fossa, where it branches and innervates the dura mater. It carries sensory fibers from the dura mater in the region of the middle cranial fossa to the nucleus of the trigeminal nerve.

Thus, the meningeal branch plays an important role in the innervation and sensitivity of the dura mater of the middle cranial fossa.