Question

draw a neat diagram of human ear and label external ear and middle ear

Answer 1

Answer:

The human ear consists of three parts – the outer ear, middle ear, and inner ear.

Outer ear: This is also called ‘pinna’. It collects the sound from the surrounding and directs it towards the auditory canal.

Middle ear: The sound reaches the end of the auditory canal where there is a thin membrane called eardrum or tympanic membrane. The sound waves set this membrane to vibrate. These vibrations are amplified by three small bones- hammer, anvil, and stirrup.

Inner ear: These vibrations reach the cochlea in the inner ear and are converted into electrical signals which are sent to the brain by the auditory nerve, and the brain interprets them as sound.