Question

which structure in fingure 31-2 is commonly injured by people inserting cotton swabs or other objects into their ears?

Answer 1

eardrum or tympanic membrane.

Answer 2

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You can add figure 31-2 with the Attach File button.
@whpalmer4 how do you know the answer without this picture even being posted?

Answer 3

I took a look in my ear :-)

Answer 4

lol :P