Why does hearing decrease if an ear infection causes fluidbuildup in the middle ear? What value are the tubes that aresometimes surgically placed in the eardrums for patients with ahistory of repeated middle ear infections accompanied by chronicfluid accumulation?
You are prodding your blindfolded lab partner’s arm with twoneed probes. Sometimes she can tell you are using two probes. Butwhen you probe a less sensitive areas, she thinks there is only oneprobe. Which sense are you testing? Which receptors are stimulated?Explain why sometimes she feels only one probe.
