Even in absolute silence there are still APs in all auditory nerve fibres to the brain because:

Question

Accepted Answer

there is a standing current flow through some open ion channels in hair cell stereocilia.

Answer

the eardrum is always vibrating by a small amount.

Answer

K +  ions are entering the afferent fibres, through open ion channels.

Answer

the nerve fibres can control the transmitter they release.

Answer

the outer hair cells are always releasing transmitter to these nerve fibres.

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