Neuroanatomy Draw It To Know It

23. Eye Movements 415

DRAWING 23-2 Horizontal Saccade Circuitry

MIDBRAIN

PONS

MEDULLA

Neural

integrator

Frontal

eye fields

EBN*

Superior

colliculus

Omnipause

neurons

VI VI

IBN*

LEFT RIGHT

Diffuse nuclei

*EBN - Excitatory

burst neurons

*IBN - Inhibitory

burst neurons