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14 terms

Organ of Corti - Inner Ear

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comprises the organ of corti
all anatomical structures within the scala media
supportive cells
"support" the organ of corti either metabolically or structurally
receptor cells
hair cells in the organ of corti
Inner/Internal Hair Cells
receptor cells that respond to movement of the basilar membrane caused by the hydraulic wave generated in the scala media - are aligned in a single row running the length of the cochlea
Outer/External Hair Cells
receptor cells that respond to movement of the basilar membrane cause by the hydraulic wave generated in the scala media - aligned in three rows running the length of the cochlea
Basilar Membrane
receptor cells sit on top the most flexible part of this structure that arises from the spiral lamina
spiral lamina
a bony shelf that supports the basilar membrane on the modilous, centeral (left) side of the cochlea
spiral ligament
the oppisite end support of the basilar membrane - is a thick lining of the bony lab. that anchors the basilar membrane to the lateral wall of cochlea
amplitude, hydraulic wave, cochlea
basilar membrane moves with the most _ in response to _ generated _
stria vascularis
located laterally (above) the spiral ligament - responsible for maintaining the proper chemical concentrations for endolymph, the fluid inside the cochlear duct
reticular lamina
a thin delicate membrane that holds the inner and outer hair cells gently yet firmly in place - the cells poke through this membrane at the base of the hair cell
tectorial membrane
where the tops of the hair cells extend towards and embed in - extends over the superior surface of the organ of corti
kinocilium
the inner hair cells during embryotic development - a single large hair that disappears during the latter part of fetal development
stereocili
the true sensors to hair cells