Cavernous Sinus Contents

Mnemonic for Cavernous sinus contents: CATOMO:

Occulomotor nerve (III)
Trochlear nerve (IV)
Ophthalmic nerve (V1)
Maxillary nerve (V2)
Carotid artery
Abducent nerve (VI)

Another mnemonic for draining veins and contents

3 Afferent veins: Sphenoparietal sinus (Vault veins), Sup Middle cerebral Vein (Brain), Ophthalmic vein (Orbit)
3 Efferent Veins: Superior petrosal sinus, Inferior Petrosal Sinus, Communicating vein to pterygoid plexus
3 Contents; Cranial Nerves (III,IV, V1,V2 & VI)
3 Areas Drain into it: Vault Bones, Brain (Cerebral Hemisphere), Orbit
3 Nerves: Motor(III,IV,VI),Sensory (V1,V2), Sympathetic


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