Respuesta :

The outer ear includes: auricle (cartilage covered by skin placed on opposite sides of the head) auditory canal (also called the ear canaleardrum outer layer (also called the tympanic membrane)
auricle (cartilage covered by skin on opposite sides of the head) auditory canal (also called the ear canal) eardrum outer layer (also called the tympanic membrane)

Hope this helped :)