Ocular Motility/Muscles Flashcards
Superior Rectus
Upward Movement
Superior Oblique
Downward and Outward Movement
Medial Rectus
Forward Movement
Inferior Rectus
Downward Movement
Inferior Oblique
Upward and Outward Movement
Lateral Rectus
Outward Movement
Versions
Movements of both eyes in the same direction
Vergence
Movement of both eyes in opposite direction
Ductions
Movement of one eye
Saccades
fast conjugate eye movements that change to point of foveal fixation
Smooth Pursuits
slower tracking movements of the eyes designed to keep a moving stimulus on the fovea
Vergence Movements
movement of the two eyes in opposite direction
Vestibulo-ocular movements
reflex responses that stabilize the eyes relative to the external world, compensating for head movements
Third Cranial nerve affects
Medial rectus, Superior Rectus, Inferior Rectus, Inferior Oblique
Fourth Cranial nerve affects
Superior oblique