| On either side of the dorsum sellae is a notch for the passage of the abducens nerve. |
| Branches emanating from a small ganglion connected to the nasal nerve have been followed to the oculomotor and abducens nerves. |
| The exceptions are the superior oblique, which is enervated by the trochlear nerve, and the lateral rectus, which is enervated by the abducens. |
| Particular attention should be given to detecting problems related to the optic, oculomotor, trochlear and abducens nerves. |
| It may be absent on one side, in which case the extraocular muscle usually innervated by the abducens is supplied by the oculomotor nerve. |
| The severe exotropia and hypotropia of the subjects' eyes limited the ability to assess trochlear and abducens function. |
