Human Ear and Range of Hearing

The video explains the structure and function of the human ear, highlighting its three main parts: the outer ear, middle ear, and inner ear. The outer ear includes the pinna and auditory canal, while the middle ear contains the eardrum and three bones. The inner ear features the cochlea. Sound waves are collected by the pinna, transmitted through the auditory canal, and cause the eardrum to vibrate. These vibrations are amplified by the middle ear bones and transformed into electrical signals by the cochlea, which are then sent to the brain via the auditory nerve for interpretation.

What are the three principal parts of the ear?

What is the function of the cochlea in the inner ear?

Describe the role of the pinna in the process of hearing.

Explain how sound waves are transmitted from the outer ear to the inner ear.

What happens to the electrical signals after they are sent to the brain?