With our eyes, with our brains, or with our hearts:

How do we actually hear?

Sound is movement of air guided through the concha to the auditory canal. At the end of the auditory canal, the sound collides with the eardrum and makes it vibrate. The sound is then conveyed to the inner ear via the chain of auditory ossicles. Hair cells convert the movement there into electrical impulses, which are transmitted to the brain via auditory nerve.

The brain process what ear picks up.

Where does a sound come from, how loud is it, is it a word, and if yes, what does it mean? By the time we grow up, we are already listening from experience. We “block out” noises that we have learned are not important, such as continual background noises. But emotional significance also plays a role. The gentle sobbing of a baby will wake mothers from the deepest sleep although other, louder noises have not disturbed them.

Our speech comprehension depends on the extent to which we learn a language. After all, auditory comprehension is not the job of the ear, but rather of the brain. Everything that the brain does, it needs to practice.

The ear is composed of the outer ear and the middle ear for picking up, bundling, and transmitting sounds. In the inner ear, the sound vibrations are then converted into neural impulses. The anterior cartilaginous section of the auditory canal contains glands, which produce cerumen (ear wax), and cilia which transport the wax to the outside. As such, you could say that the ear cleans itself. The inner ear is home to the semicircular canals (our organ of balance)m and the cochlea. The cochlea contains approximately 12,000 outer and 3,00 inner hair nerve cells, which are responsible for converting the sound into neural impulses. The outer hair nerve cells allow fine differentiation of pitch and volume.

Source:  Hansaton “Simply better hearing. Welcome to life at its fullest.”

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