The part of the ear that connects it to the outside world is the
outer ear. The outer ear contains the ear drum and the bell. The
bell is the part of the ear that shows on the outside.
How many bones make up the outside part of your ear and why?
The outside of the ear, called the pinna or auricle, is made of
cartilage not bone.
The bones (auditory ossicles) are located in the middle chamber
of the ear.