Peripheral endorgan

• Peripheral endorgan
• Spiral ganglion cells
• Ventral cochlear cells- first relay
• Dorsal cochlear cells- processing region
• Trapezoid body- decussation; projects rostral in lateral lemniscus
• Brainstem Olivary Complex
• Superior olive- Efferent source
• Medial nucleus of Trapezoid body (MNTB) (Direction detection)
• Ventral nucleus of the lateral lemniscus
• Inferior colliculus -Startle reflex
• Brachium of inferior colliculus- projection to medial geniculate body (Thalamus relay)
• Medial geniculate body
• Area 41- Heschls gyrus (Primary cortex)
• Association cortex - area 22 and Wernickes area