Neuroanatomy Draw It To Know It

14. Vestibular and Auditory Systems 241

HORIZONTAL CANAL PROJECTIONS - EXCITATORY

Vestibular

nuclear

complex

Abducens

nucleus

Oculomotor

nucleus Medial longitudinal

fasciculus

Lateral

rectus

Medial

rectus

Ascending

tract of

Deiters

Sup

Lat

Med

Inf

Upper

Lower

VESTIBULOSPINAL TRACTS

Thalamic projections - somatosensory detection

Reticular projections - nausea/vomiting

Vestibulocolic reflex - level head

ADDITIONAL CENTRAL VESTIBULAR PROJECTIONS

Medial vestibulo-

spinal tract

Lateral

vestibulo-

spinal

tract

DRAWING 14-3 Th e Vestibular System