Question

Briefly describe the pathway of impulse conduction from the labyrinth in the ear to the auditory cortex and to the eyeballs. In your own words!

Answer 1

Sound waves getting into the ear travel through the external external auditory canal before hanging the tympanum and inflicting it to vibrate.

The tympanum is connected to the hammer, one in all 3 tiny bones of the center ear. conjointly referred to as the hammer, it transmits sound vibrations to the anvil, that passes them to the stirrup. The stirrup pushes in and out against a structure referred to as the fenestra. This action is passed onto the tube, a fluid-filled snail-like structure that contains the organ of Corti, the organ for hearing. It consists of little hair cells that line the tube. These cells translate vibrations into electrical impulses that square measure carried to the brain by sensory nerves.

In this cut-view, you'll be able to see the organ of Corti with its four rows of hair cells. there's Associate in Nursing inner row on the left and 3 outer rows on the correct.

Let's watch this method in action.First, the stirrup rocks against the fenestra. This transmits waves of sound through the tube fluid, causing the organ of Corti into motion.

Fibers close to the higher finish of the tube resonate to lower frequency sound. Those close to the fenestra reply to higher frequencies