1. Oculomotor Nerve, Trochlear Nerve Abducens nerve
Dr Kifah Alubaidy

2. Anatomy & function
Brainstem
Intracranial course

3. Orbit Oculomotor Nerve Trochlear Nerve Abducens nerve
Somatic Motor: Superior, Medial, Inferior Rectus, Inferior Oblique
diplopia in all directions except looking to the side of affected eye
Visceral Motor: Sphincter papillae
Loss of pupil reflex
Trochlear Nerve
Somatic Motor: Superior Oblique
diplopia due to eye drifting upward, when looking down)
Abducens nerve
Somatic Motor: Lateral Rectus
diplopia in looking to the side of affected eye

5. Extraocular muscles
Inferior oblique moves eye up when it is in an adducted position; also extorts the eye.
Superior oblique moves eye down when it is adducted; also intorts the eye.

6. Pupillary reflex

7. Oculomotor Nerve Ptosis Eye down and out Diplopia
Loss pupillary reflex