And each one of these three semicircular canals basically lie along the three different axes, along the X, y and z axes. So the semicircular canal, just like the cochlea, contains its own fluid. And the fluid in a semicircular canal is known as our endolmp endolymph. So as this fluid experiences our variation and pressure the mechanical wave, this causes the specialized hair cells found inside a semicircular canal. So we see that we not only have hair cells inside the cochlea, we also have hair cells inside the semicircular canal, but these hair cells are slightly different. So basically, these hair cells depolarize and they send the action potential, the signal, through its own nerve, known as our vestibular nerve.