Presbycusis Essay Example | Topics and Well Written Essays - 500 words

Presbycusis - Essay Example The procedure of ordinary hearing beginnings when sound waves are directed through the external ear waterway to the eardrum. The eardrum consequently vibrates to set the malleus, the incus, and the stapes of the center ear moving. These three bones which end in the liquid filled opening inside the internal ear especially the snail like structure, cochlea reacts to vibrations from the environmental factors that are the premise of sound. The hierarchy of leadership from these three bones triggers the liquid which transfers the swaying flows to the organ of corti. Flows are moved with the assistance of the small hair projections coating the interior layer of the cochlea and waving like the smooth submerged plants to move the sound that invigorates nerve endings. A great many these nerving endings which converge toward the finish of the cochlea join to turn into the sound-related nerve which conveys nerve driving forces to the meeting territory of the cerebral cortex in the cerebrum (Wag man, 1992). Presbycusis which is a dynamic hearing misfortune is brought about by abandons in the external, center or inward ear. Nearness of inherent distortions in the external ear may meddle with the catch of sound waves from the condition that possibly channeled to the ear waterway.