Perilymph (Perilymph)

Perilymph is a fluid that plays an important role in the anatomy and function of the inner ear. It is located in the space between the bony and membranous labyrinths and makes up one of the two fluids that fill the inner ear.

Perilymph is similar to cerebrospinal fluid, which surrounds and protects the brain and spinal cord. It contains a high concentration of sodium and a low concentration of potassium, which allows it to play an important role in transmitting sound waves from the outer ear to the cochlea of ​​the inner ear.

The perilymph also plays an important role in maintaining balance and coordination of movements. It helps the cochlea record head movements and transmit information about body position to the brain. This allows us to sense where our limbs are and how they move in space.

Disturbances in the composition and pressure of the perilymph can lead to various diseases of the inner ear, such as hydrocephalus, labyrinthitis and Meniere's disease. In addition, certain abnormalities in the perilymph may affect the functioning of sensory receptors in the cochlea and lead to hearing and balance problems.

In conclusion, the perilymph is an important component of the anatomy of the inner ear and plays an important role in the transmission of sound waves, as well as maintaining balance and coordination of movements. Understanding its structure and function allows us to better understand various diseases of the inner ear and develop effective treatments.



Perilymph is a fluid that is located between the bony and membrane labyrinth of the inner ear. It plays an important role in the functioning of hearing and balance.

Perilymph consists of water, ions and proteins. It performs a number of functions, such as transmitting sound waves, maintaining pressure inside the cochlea, and ensuring the mobility of the ossicles in the ear.

When we hear sound, sound waves are transmitted through the fluid in the cochlea and reach the membranes. These waves are transmitted to fluids in the membrane labyrinth, which are then transmitted to the bones in the ear, which transmit them further to the brain.

In addition, perilymph helps maintain pressure inside the cochlea and ensures the mobility of the ossicles in the ear. If there were no perilymph, the bones could fall out of their places and impair hearing and balance.

Thus, perilymph is an important component of the inner ear and plays a key role in our hearing and balance.



**Perilymph** is a specific secretion of the temporal bone that defines the inner ear of humans, mammals and other animals. In other words, this is a kind of “lining”, an “insert” for the middle ear, filling a special section of the skull where the hearing organs are located. If it were not there, the person would become deaf or become even more intelligible in hearing. The outer ear hears the outside world thanks to the repeated reflection of these vibrations on the surface of the auricle - a membrane that causes the vibrations to transform in waveform into types of vibrations that are inhomogeneous for the hearing organ.

As a result of such a multitude of sound waves, complex vibrations are formed in the perilymph. Peculiar pressure waves are created inside the auditory ossicles. This changes the length of the column of fluid, which is pushed out of this part of the skull through the Eustachian tube into the outer ear. Due to such vibrations in the tympanic cavity, after the sound wave appears, additional pressure is also formed. With some fluctuations in the perilymph, these changes can become very significant over a period of time. The receptive part of the hearing aid, located in the inner ear, is able to “read” voltage, tone and vibration shape. Accordingly, the perilymph and the auditory analyzer interact in such a way that the effect of wave reflection is obtained, perceived as sound. At the end of the interaction outside