Brain conducts a neural orchestra, Rate My Science


Added on Jul 28, 2012

Length: 02:12 | Comments: 0 Publish your projects or ideas at Rate My Science Hair cells are columnar cells, each with a bundle of 100-200 specialized cilia at the top, for which they are named. There are two types of hair cells. Inner hair cells are the mechanoreceptors for hearing: they transduce the vibration of sound into electrical activity in nerve fibers, which is transmitted to the brain. Outer hair cells are a motor structure. Sound energy causes changes in the shape of these cells, which serves to amplify sound vibrations in a frequency specific manner. Afferent neurons innervate cochlear inner hair cells, at synapses where the neurotransmitter glutamate communicates signals from the hair cells to the dendrites of the primary auditory neurons. The primary auditory cortex is the first region of cerebral cortex to receive auditory input. Perception of sound is associated with the left posterior superior temporal gyrus. The superior temporal gyrus contains several important structures of the brain, including Brodmann areas 41 and 42, marking the location of the primary auditory cortex, the cortical region responsible for the sensation of basic characteristics of sound such as pitch and rhythm. As a teacher, you and your students can use Rate My Science to deposit and rate projects

Channels: Vocal Health  

Tags: Rate  My  Science  brain  auditory  hearing  Hair  cell  colliculus  sound  music  neural  pitch  tempo  orchestra  rhythm  frequency  cortex  neuron 


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