explain how your ears sense the sound. Each numbered step refers to a structure with the
same number inFigure20.25andTable(20.2).
Figure 20.25: Read the names of the parts of the ear in the key (Table20.2), then find each
of the parts in the diagram, referring to the diagram as you read about the parts of the ear.
( 36 )
Table 20.2:Number in diagram Part of the ear
1 pinna
2 ear canal
3 eardrum
4 hammer
5 anvil
6 stirrup
7 oval window
8 cochlea
9 auditory nerve
10 semicircular canals- The sound waves are gathered by thepinna,or outer ear. This is the part of the ear
you can see. - The sound waves are channeled into theear canal.This is a tube-shaped opening in