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.

Which part of the ear is visible externally?

• Eardrum

• Cochlea

• Pinna

• Auditory nerve

What is the role of the eardrum in the ear?

• It produces sound waves.

• It vibrates in response to sound waves.

• It transmits signals to the brain.

• It collects sound waves.

Which bones are found in the middle ear?

• Cochlea, Pinna, Eardrum

• Stirrup, Cochlea, Anvil

• Hammer, Anvil, Stirrup

• Auditory nerve, Cochlea, Pinna

What is the function of the cochlea in the ear?

• It collects sound waves.

• It connects the ear to the brain.

• It strengthens sound vibrations.

• It transforms vibrations into electrical signals.

How does the brain contribute to the process of hearing?

• It collects sound waves.

• It strengthens sound vibrations.

• It vibrates in response to sound.

• It interprets the electrical signals from the ear.