A&P Review The Inner Ear

Fluid contained in the vestibular and cochlear portions of the bony labyrinth that surrounds the membranous labyrinth

Perilymph

A vascular strip along the outer wall of the scala media that supplies oxygen to the cochlea

Stria vascularis

Nerves that carry impulses from the periphery to the brain

Afferent

Three loops within the vestibule that monitor angular acceleration

Semicircular Canals

The cochlear duct containing the organ of Corti

Scala media

Fluid contained in the membranous labyrinth

Endolymph

The membrane separating the scala media from the scala tympani and supporting the organ of Corti

Basilar membrane

The duct in the inner ear above the scala media that contains perilymph

Scala vestibuli

Nerves that carry impulses from the brain to the periphery

Efferent

The sensation of true turning or spinning

Vertigo

The membrane separating the scala vestibule from the scala media

Reissner’s membrane

What is the membrane in the scala media above the organ of Corti into which the tips of the hair cells are imbedded

Tectorial membrane

The duct below the scala media that is filled with perilymph

Scala tympani

An opening at the apical end of the cochlea connecting the scala vestibule with the scala tympani

Helicotrema