Monday, August 18, 2008

Step inside the Ear Canal

If we could stroll up the ear canal for a quick visit, we might find some wax blocking our way. At the end of the fleshy tunnel, we would have to squeeze around a huge, circular membrane - better known as the eardrum. After than, we would sidestep the oddly shaped middle ear bones and step into the inner ear. Up ahead we would see, rising like skyscrapers, a cluster of slender and interconnected inner ear hair cells. Bundles of them would gently bend as sound waves pass. These receptacles take in those sounds and transforming them into electrical signals, sending them to the brain for interpretation.