Cavernous sinus contents Mnemonic

A mnemonic to remember the Cavernous sinus contents is:

  • O TOM CAT

O TOM are lateral wall components, in order from superior to inferior.

CA are the components within the sinus, from medial to lateral. CA ends at the level of T from O TOM.

Mnemonic

  • O cculomotor nerve (III)
  • T rochlear nerve (IV)
  • O phthalmic nerve (V1)
  • M axillary nerve (V2)
  • C arotid artery
  • A bducent nerve (VI)
  • T : When written, connects to the T of OTOM
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