Which part of the ear turns the sound vibrations to electrical signals?

The Correct answer is Cochlea.

Key Points

• The cochlea is a spiral-shaped, fluid-filled structure in the inner ear.
• It contains the organ of Corti, which is the sensory organ responsible for converting sound vibrations into electrical signals.
• When sound waves enter the cochlea, they create pressure waves in the fluid.
• These pressure waves move the basilar membrane within the cochlea.
• The movement of the basilar membrane stimulates the hair cells in the organ of Corti.
• The hair cells then convert these mechanical movements into electrical signals.
• These electrical signals are transmitted to the brain via the auditory nerve.
• The brain interprets these signals as sound, allowing us to hear.

 Additional Information

• Auditory Canal
  • The auditory canal is the tube that carries sound waves from the outer ear to the eardrum (tympanic membrane).
  • It does not play a role in converting sound vibrations into electrical signals.
• Pinna
  • The pinna is the visible part of the outer ear that collects sound waves and directs them into the auditory canal.
  • It does not convert sound vibrations into electrical signals.
• Tympanic Membrane
  • The tympanic membrane, or eardrum, is a thin membrane that vibrates when sound waves hit it.
  • It transmits these vibrations to the ossicles in the middle ear but does not convert them into electrical signals.