Human Ear Anatomy and Function

The video tutorial explains the auditory mechanism of the human ear, which is divided into three main parts: the outer ear, middle ear, and inner ear. The outer ear collects sound and directs it to the eardrum, which vibrates in response to sound waves. The middle ear amplifies these vibrations using three small bones. Finally, the inner ear converts the vibrations into electrical signals that are sent to the brain via the auditory nerve, allowing us to perceive sound.

What is the primary function of the human ear?

• To convert sound into chemical signals

• To convert sound into light signals

• To convert sound into mechanical signals

• To convert sound into electrical signals

Which part of the ear is responsible for collecting sound from the surroundings?

• Auditory nerve

• Outer ear

• Middle ear

• Inner ear

What is the function of the eardrum?

• To transmit sound to the brain

• To vibrate in response to sound waves

• To collect sound

• To amplify sound

What happens to the eardrum during rarefaction?

• It remains still

• It moves inward

• It moves outward

• It vibrates rapidly

What is the thin membrane at the end of the auditory canal called?

• Cochlea

• Eardrum

• Stirrup

• Anvil

What are the three bones in the middle ear called?

• Hammer, Anvil, Drum

• Hammer, Nail, Stirrup

• Hammer, Anvil, Stirrup

• Hammer, Nail, Drum

How does the middle ear contribute to hearing?

• It transmits sound directly to the brain

• It converts sound into electrical signals

• It collects sound from the surroundings

• It amplifies sound vibrations

What role does the cochlea play in the auditory process?

• It amplifies sound vibrations

• It transmits sound directly to the brain

• It converts pressure variations into electrical signals

• It collects sound from the surroundings

Through which nerve do the electrical signals travel to the brain?

• Optic nerve

• Auditory nerve

• Spinal nerve

• Cochlear nerve

Which part of the ear is responsible for interpreting sound as electrical signals?

• Auditory nerve

• Inner ear

• Middle ear

• Outer ear