principles Flashcards
1
Q
what is the kinocilium? stereocilia?
A
kinocilium = longest hair in middle
sterocilia = hairs around kinocilium arranged in height order
2
Q
how does the firing rate of action potentials change with movement of hairs in the inner ear?
A
deflection towards kinocilium = increase
deflection away = decreases
3
Q
role of the organ of corti
A
Wave passes through the cochlea maximally stimulating a particular area of the basilar membrane.
The organ of Corti here depolarises and fires – stimulating the VIIIth nerve and then the central pathways
Culminating in activity in superior temporal gyrus
