The object of study of this work, the auditory device of the mammals and the human beings, is a system with mechanisms that if relate between itself, converting mechanical stimulatons (mechanical waves) into information for the brain. These information are processed for the brain in form of electric impulse, where they cause the psicofsica sensation of the hearing. Beyond allowing the perception of the sounds, the hearing has also the capacity to transmit messages emotional, activating other directions and areas of the brain, being also of basic importance in the balance and position human being and as felt of localization of some animals. Since the insects until human beings, the sound is a precious agent of information communication, therefore can be observed the internal specialization of the auditory device and its structures. The methodology used in the elaboration of this work was the bibliographical revision and searches in half electronic.
The general objective was to understand of a general form the biofsico functioning of the auditory device, its functions, the internal phenomena and importance of this direction in the perception of the external stimulatons. The specific objectives had been: To summarily describe the physics of the sound; To describe some characteristics and properties of the sound; To describe the auditory device of the man and other mammals; To understand the structure and functions of the auditory device; To understand the types of anomalies of the hearing; To describe the ecolocalizao through the system of PHYSICAL hearing OF the SOUND a direct and common definition of characterizes it to sound as a material disturbance that if propagates through ondulatrios and longitudinal impulses, known as mechanical waves. Inside of its gamma of wave length, the mechanical waves are used as media for diverse species.. Further details can be found at Dropbox, an internet resource.