Order the steps that occur during the process of hearing. Sound reaches the ear 2. Sound is perceived. 1) moving air vibrates the tympanic membrane.

Order the steps that occur during the process of hearing.

1. Sound reaches the ear

2.

3.

4.

5.

6.

7.

8.

9. Sound is perceived.

1) moving air vibrates the tympanic membrane.

2) Middle-ear bones transmit vibrations to the oval window.

3) Pressure waves in the perilymph of the cochlea are generated.

4) Pressure waves push down on the cochlear duct and middle membrane.

5) Middle membrane and hairs in the organ of Corti vibrate.

6) Mechanoreceptors in hair cells open and close ion channels.

7) Electrical impulse is sent through cochlear nerve to the cerebral cortex.