Question

what is the outer year made up of

Answer 1

I think you want to say, "What is outer ear made up of?"
Then the answer is CARTILAGE...(which is flexible)

That's the reason why you can twist your ear pinna while not your other bones...

Outer ear is not made of bones.

Answer 2

The ear has external, middle, and inner
portions. The outer ear is called the pinna
and is made of ridged cartilage covered by
skin. Sound funnels through the pinna into
the external auditory canal, a short tube that
ends at the eardrum (tympanic membrane).