Listen, this is pay attention to what is meant. The word comes from the latin ascultāre and refers to the Act of the ear to collect the noise of something, to be attentive to a warning, a Council or a suggestion and to take account of what someone said.
The Act of listening is therefore linked to the hearing and psycho-physiological processes that give humans the ability to hear. The physiological aspect is determined by the stimulation of the organs of hearing, while the psychological process derives from the conscious act of listening to a sound.
The auditory system may be divided into two parts: the peripheral auditory system (ear), responsible for physiological processes that capture the sound and send it to the brain, and the central auditory system (hearing nerves and brain), responsible for psychological movements that make up what is meant by sound perception.
The ear consists of three parts: the outer ear, middle and internal. The outer ear is formed by the atrial Pavilion and the external ear canal; the middle ear, in turn, includes the eardrum, the string ossicular (hammer, the incus and the stapes), air cavities and the eustachian tube. then the inner ear contains the oval window, the cochlea or (snail), the vestibule and semicircular canals.
The Act of listening occurs when the ear captures sound waves transmitted through the ear canal to the eardrum. The eardrum vibrates when sound waves do, and this vibration happens to the ossicles which, in turn, amplify the sound and pass it on to the inner ear through the oval window. Then, the vibrations set in motion both liquids contained in the cochlea (the perilymph and endolymph), thus distorting the ciliated cells that lie inside. These cells convert sound waves into electrical impulses that arrive to the auditory nerve to be forwarded to the auditory cortex, which is the body responsible to interpret the sounds.