(anatomy) One of two openings transmitting nerves and blood vessels to or from the orbit, situated superiorly between the greater wing and the lesser wing of the sphenoid bone.

(anatomy) The upper of two thin bony processes of the ethmoid bone on the lateral wall of each nasal fossa that forms the upper boundary of the superior meatus of the nose.

(anatomy) One of two venous sinuses of the dura mater passing backward in the convex attached superior margin of the falx cerebri and ending at the internal occipital protuberance by fusion with the transverse sinus.

(neuroanatomy) Any of the branches of the maxillary nerve or of the infraorbital nerve that supply the teeth and gums of the upper jaw.

plural of superior cervical ganglion

(neuroanatomy) A ganglion at the top of the sympathetic chain that lies between the internal carotid artery and the second and third cervical vertebrae and that sends postganglionic fibers to the heart, larynx, and pharynx, and to the head.

(neuroanatomy) One of two branches of the vagus nerve that arises from the ganglion of the vagus situated below the jugular foramen in front of the transverse processes of the first two cervical vertebrae and that passes down the neck to supply the cricothyroid muscle.

plural of superior sagittal sinus

plural of superior olivary complex

(anatomy) A smooth muscle helping to raise the upper eyelid.