Ear section

The ear consists of three parts - the outer, middle and inner ear. Let's look at the anatomy of the ear in more detail.

The outer ear includes the pinna and the external auditory canal. The auricle is cartilage covered with skin. It collects sound waves and directs them into the external auditory canal. The external auditory canal is the cavity connecting the auricle to the eardrum.

At the end of the external auditory canal is the eardrum. It is a thin elastic membrane that separates the outer ear from the middle ear. The eardrum receives sound vibrations from the external auditory canal and transmits them further to the middle ear.

The middle ear consists of a cavity called the tympanic cavity. It contains three small bones - the malleus, the anvil and the stirrup. The hammer is connected to the eardrum and is driven by its vibrations. It then transmits these vibrations to the incus, and the anvil to the stapes.

The stapes is attached to the oval foramen, which leads to the inner ear. Through the foramen ovale, sound vibrations enter the cochlea, a snail-shaped canal located in the inner ear.

Inside the cochlea there is fluid and ciliated cells, which are hearing receptors. They convert sound vibrations into nerve impulses, which then travel along the auditory nerve to the brain.

Thus, sound waves pass through the outer, middle and inner ear, where they are eventually converted into nerve signals and transmitted to the brain.