«impossible to see separates man from things.
impossibility to hear separates man from the people. "
Immanuel Kant
person perceives the information from the outside world through the five senses - sight, hearing, touch, taste and smell, which not only inform him of any change in the external environment, but also to warn of possible danger.As a result, the person gets some experience.On the basis of the experience acquired forms of human behavior.
structure of the human auditory organ anatomically represented the outer, middle and inner divisions.The outer ear includes the ear, hearing S-shaped canal and eardrum - tendon plate, which is very taut.The main function of this department is the organ of hearing in protecting middle and inner divisions, as well as in capturing and holding the sound waves to the middle ear.
The middle ear is a cavity, which is filled with air and contains the eustachian tube and ear bones - the hammer, anvil and stirrup.The purpose of this division is to strengthen and conducting sound vibrations that come from the eardrum.The auditory ossicles - a very complex anatomical structure, they are mobile and connected in series with each other.The malleus, adhering to the inner side of the eardrum, it transmits vibrations to the anvil and stirrup.And it is in turn tightly connected to the oval window of the inner ear.
Eustachian tube opening onto one end of the cavity of the middle ear and the other - to the cavity of the nasopharynx, provides equal air pressure in the middle ear.
internal department hearing organ is filled with liquid and consists of an oval window of the cochlea and the organ of Corti.The oval window, perceiving sound vibrations of the auditory ossicles, transmits them to the cochlea, which is a curved channel.Basilar membrane of the cochlea, located in the middle of the anatomical structure is composed of stretched fibrils on which is the organ of Corti - the main auditory receptor.Fluctuations fibrils snail perceived sensory hairs organ of Corti and transmitted by the auditory nerve to the auditory region of the cerebral cortex, which is the formation of the sound sensations.
organ of hearing person has a special significance.Hearing, as well as the human organ of taste, fully formed from the newly born child who recognizes the voice of the mother immediately after birth.Any sound vibrations in the air, affecting the organ of hearing, provide an opportunity to understand what is happening around.It is the organ of hearing allows a person to exist in the social environment, to perceive spoken language, allows you to converse with others and engage in social and employment.It is able to bind together different people, regardless of differences in culture, religion or skin color.If verbal exchange between two people is not, then, as a rule, between them there is distrust and unconscious rejection.
If there is hearing loss in early childhood, the child loses the ability to reproduce words and pronounce them.Although healthy people appreciate hearing much less than the vision, but it is the organ of hearing person it allows him to maintain a close relationship with the outside world, as it can not "switch off", even in his sleep.
rumor - this is the most acute and most perfect sense.The number of sound waves audible to human ears, millions of times less than the number of molecules which react to human olfactory organ.As a result, a person can distinguish between a huge range of the most diverse sounds and, most importantly, very accurately determine the distance to the source.Organ of hearing person has a complicated structure so that none of the most modern technical devices can not replace him.
And despite the fact that the deaf or hard of hearing people can recognize the sound information for the gesture or movement of the lips of another speaker, grasp the emotional words he can not.As can not fully convey the mood gestures.All people are part of the sound of the world.And those who, for whatever reason, in adulthood lost their hearing, argue that perceive this loss very hard, as are isolated from the outside world of sound.
hearing is considered the most intelligent sensory organ, because the recognition of sounds is very closely linked to the limbic system, which is responsible for human emotions.For example, listening to music can evoke a variety of feelings - joy and admiration to discouragement and sadness.Congenital or acquired at an early age hearing defects may entail not only the heavy intellectual and cognitive, and psychosocial developmental defects.Man, as a purely social being, is going through a real emotional drama with hearing loss.
Thus, all of our five senses are not equal.What matters most is the rumor that is fundamental to the definition of the social attributes of man.Hearing allows not only to receive the information of different nature from the outside, but also to gain knowledge, experience strong emotions.It is used for social communication, it warns of the danger and avoids it.
