Answer:
Tympanic membrane
Step-by-step explanation:
The tympanic membrane, also called eardrum is a thin, semitransparent partition present between the external auditory canal and the middle ear. The tympanic membrane is covered by epidermis. It is lined by simple cuboidal epithelium. The connective tissue present between the epithelial layers of the eardrum is composed of collagen, elastic fibers, and fibroblasts.
The function of the tympanic membrane is to vibrate when sound waves arrive. The vibration of the tympanic membrane causes malleus to vibrate. The amplified vibrations are transmitted from tympanic membrane to oval window via auditory ossicles.