Cases of word usage

1) deformed ear (cauliflower ear)

2) the inner part of an ear of maize on which the grain grows (cob)

3) in the form of the spiral-shaped part of the inner ear (cochlear)

4) the flap at the bottom of the outer ear (lobe)

5) a metal piece hanging down from a saddle, for a rider's foot; a bone in the ear (stirrup)