Anatomy of the Human Ear

The video explains how the human ear processes sound. It covers the anatomy of the ear, including the outer, middle, and inner parts. Sound waves enter through the outer ear, causing the eardrum to vibrate. These vibrations are amplified by the ossicles in the middle ear and transmitted to the cochlea in the inner ear. The cochlea converts these vibrations into electrical signals, which travel through the auditory nerve to the brain, allowing us to perceive sound.

What are the three main parts of the ear that work together to transmit sound to the brain?

• Eardrum, ossicles, cochlea

• Ear canal, eardrum, auditory nerve

• Pinna, cochlea, auditory nerve

• Outer ear, middle ear, inner ear

What is the primary function of the pinna in the outer ear?

• To collect and funnel sound waves

• To convert sound waves into electrical signals

• To protect the eardrum

• To amplify sound waves

How do sound waves reach the eardrum?

• Through the auditory nerve

• Via the cochlea

• Via the ossicles

• Through the ear canal

What is the role of the ossicles in the middle ear?

• To collect sound waves

• To protect the inner ear

• To convert sound waves into electrical signals

• To amplify sound vibrations

Which part of the ear contains the ossicles?

• Outer ear

• Middle ear

• Inner ear

• Auditory nerve

What happens when the tiny hairs in the cochlea move?

• They amplify the sound

• They create an electrical signal

• They protect the inner ear

• They vibrate the eardrum

How does the brain interpret the electrical signals from the cochlea?

• As sound

• As light

• As vibrations

• As movement

What determines the variation in the electrical signal sent to the brain?

• The size of the cochlea

• The number of ossicles

• The length of the auditory nerve

• The pitch and loudness of the sound