What is the auditory system?
The sound is transmitted by waves that travel through the air. The auditory system receives these signals and passes them to the brain. The structures in this sensory system take these waves and convert them into electrical signals. These signals are then sent to the auditory parts of the brain.
The auditory system begins with the outer ear, which is a visible part of the ear. Sound waves pass through the outer ear and enter the auditory channel. In the middle ear, these sound waves vibrate the ear drum, which in turn transmits energy to three small and fine bones, Malleus, Incus and Stapes, sometimes known as a hammer, anvil and caliper. This bone structure is used to amplify and transmit sound waves.
The auditory system transforms vibration into electrical signals in the inner ear. The inner ear consists of a cochle filled with a liquid that contains the Corti organ. Corti consists of hair cells, cylindrical cells that have thin cilia Strangs above. When the sound wave passes through the cochle, the eyelashes at the top of the hair cellsThey move back and forth. Inner hair cells transform this energy into electrical signals.
The auditory nerve carries signals from the corti organ to the brain stem, as part of the cranial nerve eight, vestibulocochlear nerve. In the brain stem, the auditory information is processed by cochlear nuclei and the superior olive complex before embarking on the middle brain. Three cores in this structure, media superior olive, lateral superior olive and the core of the trapezoidal body, are involved in the location of the sound. They do this with stimuli, such as differences when the sound requires to achieve every ear or relative intensity of sounds.
The auditory system continues to Midbrain, where the lower colliculus makes a higher dam processing and integration of hearing information from previous structures. It is also involved in some sound location. From Midbrain they travel electrical signals to Thalam that passes them to SLUCThe move of the brain that is located in a time lobe.
The auditory system ends on the auditory cortex of the brain. The primary auditory bark is found on an excellent time gyru, which is above the ear on both sides of the brain. This bark can be mapped by the frequency of sound processes in each area. Lower frequencies occur closer to the frontal lobe and higher frequencies occur further backwards.