Auditory and Vestibular System Flashcards
3 compartments of the bony labyrinth
Cochlea
Vestibule
Semicircular canals
High in K+
Endolymph
Endolymph found in
scala media
Stapedius is innervated by
CN7
Tensor tympani is innervated by
CN V3
Tensor tympani is important for ___
suppression of self-generated noise
Stapedius is important for ___
dampen sensitivity upon exposure to loud noises
4 groups of Superior olivary complex
Medial superior olive
Lateral superior olive
Periolivary nuclei
Nucleus of trapezoid body
Bianural input to medial superior olive functions to ___
Time of arrival of sound in each ear
Binaural inputs to the lateral superior olive functions to ___
discriminate between differences in the intensity of sound
Primary auditory cortex is located ____
Transverse temporal gyrus, buried deep in lateral fissure
Damage to primary auditory cortex will result in ___
loss of any awareness of sound
Belt auditory cortex is located ___
Superior temporal gyrus
Parietal operculum
Cristae in _____ detect _____
Semicircular ducts
Angular acceleration
Otolithic maculae detect ____
Linear acceleration
Gravito-inertial acceleration: static head position relative to gravity
