Liquid compartments

The vestibular receptors are located in the centre of the membranous labyrinth and are bathed in 2 different types of liquid, the perilymph and the endolymph.

These liquids of the inner ear are essential for hearing and equilibration.

If the concentration of calcium in the endolymph is less than 20 umol, the calcium channels of the sensory cells do not open, stopping therefore the transformation of mechanical energy in to an electrical signal.

Liquid compartments: anatomy of the labyrinth