superior ophthalmic vein n.
A vein that begins from the nasofrontal vein, passes along the medial wall of the eye socket and through the orbital fissure, and empties into the cavernous sinus.
- Superior orbital fissure
superior orbital fissure n. A cleft between the greater and the lesser wing of the sphenoid, through which pass the oculomotor and trochlear nerves, the ophthalmic division of the trigeminal nerve, the abducens nerve, and the ophthalmic veins.
noun 1. Botany. an ovary positioned above a receptacle of a flower, as in members of the mint family.
- Superior petrosal sinus
superior petrosal sinus n. A paired sinus of the dura mater in the groove on the superior margin of the petrous part of the temporal bone, connecting the cavernous sinus with the transverse sinus.
- Superior phrenic vein
superior phrenic vein n. Any of the small veins that are tributaries to the azygos and hemiazygos veins and drain the upper surface of the diaphragm.