Neuroanatomy Draw It To Know It

14. Vestibular and Auditory Systems 245

TONOTOPY

TRANSVERSE TEMPORAL

GYRI (HESCHL’S GYRI)

Low

High

Ventral nucleus

Dorsal nucleus

Anterior

Posterior

Medial

Lateral

Low

High

High

Low

High

COCHLEA Low

COCHLEAR NUCLEI

Lateral Medial

Spherical bushy cells

of the ventral

cochlear nucleus

Globular bushy cells

of the ventral

cochlear nucleus

LEFT RIGHT

LSO MSOMNTB MNTB MSO LSO

MNTB - medial nucleus of the trapezoid body

MSO - medial superior olivary nucleus

LSO - lateral superior olivary nucleus

MEDIAL superior olivary nucleus sensitive to interaural TIME difference

LATERAL superior olivary nucleus sensitive to interaural LEVEL difference

BINAURAL SOUND LOCALIZATION

DRAWING 14-5 Auditory Physiology