Monday, June 11, 2012

Actions of extraocular muscles


Actions of extraocular muscles
Nerve and muscle
Primary action
Secondary action
Tertiary action
Cranial nerve III 
Superior rectus
Elevation (maximal on lateral gaze)
Intorsion
Adduction
Inferior rectus
Depression (maximal on lateral gaze)
Extorsion
Adduction
Medial rectus
Adduction
None
None
Inferior oblique
Excyclotorsion
Elevation (maximal on medial gaze)
Abduction
Cranial nerve IV
Superior oblique
Incyclotorsion
Depression (maximal on medial gaze)
Abduction
Cranial nerve VI
Lateral rectus
Abduction
None
None

No comments:

Post a Comment