CD222

Endolymph is produced by

• tectorial membrane

• pillar cells around inner tunnel

• marginal cells in stria vascularis

• inner hair cells in stria vascularis

What inner ear structure lies on top of the basilar membrane? It contains the hair cells.

• Scala media

• The Organ of Corti

• Vestibular membrane (Reissner's membrane)

• Scala vestibuli

The oval window is located at the start of the __________ and ends at the ______, also known as the apex of the cochlea.

• Scala vestibuli; helicotrema

• Tectorial membrane; Round window

• Scala vestibuli; Organ of Corti

• Scala tympani; helicotreme

The hair cells activate the auditory nerve through __________ energy.

• mechanical

• hydraulic

• electrochemical

• impulse

Scala vestibuli and scala tympani communicate at the

• modiolus

• apex

• spiral lamina

• scala media

Which of the following about the basilar membrane is correct?

• It seperates scala vestibuli from scala tympani

• It is narrower and stiffer at base than at apex

• It seperates scala vestibuli from scala media

• It is made up of collagen and inelastic fibres

Transduction of mechanical to neural signals occurs

• at the base of the outer hair cells

• at K+ channels in stereocilia

• between the oval and round windows

• in the scala tympani

What structures are responsible for detecting linear motion?

• Utricle

• Crista

• Spiral organ

• saccule

three half-moon tubes oriented in the three primary planes (anterior, posterior, lateral)

• saccule

• semicircular canals

• utricle

• vestibular

dilated portion at the end of each semicircular canal

• saccule

• utricle

• ampulla

• vestibular