What does the auditory system convert mechanical energy into?

What does the auditory system convert mechanical energy into?

• A. Neural signals that the brain interprets as sound.
• B. Electrical energy that triggers light.
• C. Chemical signals in the bloodstream.
• D. Magnetic fields in the ear.

Answer: (A)

Sound is mechanical energy carried by air as pressure waves. In the inner ear, hair cells in the cochlea translate that mechanical movement into electrical signals. When the hair bundles bend, ion channels open, creating receptor potentials that release neurotransmitters and trigger action potentials in the auditory nerve. These neural signals then travel to the brain and are interpreted as sound. The other options don’t fit because the auditory system does not convert sound into light-related electrical energy, bloodstream chemical signals, or magnetic fields.

Sound is mechanical energy carried by air as pressure waves. In the inner ear, hair cells in the cochlea translate that mechanical movement into electrical signals. When the hair bundles bend, ion channels open, creating receptor potentials that release neurotransmitters and trigger action potentials in the auditory nerve. These neural signals then travel to the brain and are interpreted as sound. The other options don’t fit because the auditory system does not convert sound into light-related electrical energy, bloodstream chemical signals, or magnetic fields.