That tissue called the basilar membrane, is the secret to how hearing works. The basilar membrane holds a little more than 15,000 hair cells. When the hair cells are bent, they signal the brain. The whole range is ordered nicely along the length. The basilar membrane moves in waves when the liquid is vibrating.
High pitches cause waves at the stirrup end, and low pitches at the opposite end.
There are no blood vessels near the cochlea. Listening to very loud sounds, especially for a long time, can cause serious hearing loss. One should avoid loud sounds such as loud music, aircraft, heavy machinery, or even loud vacuum cleaners. Sound waves can get to your inner ear in two ways the standard way previously described, and the other way is through the bone around the cochlea. When you speak, your vocal cords shake the air and your skull and you hear both.