How We Hear

The video explains how sounds can influence emotions and mood, describing them as movements of air molecules. It details the process of hearing, where sound waves travel through the ear canal, causing the eardrum to vibrate. These vibrations are amplified by three bones and transmitted to the cochlear, where fluid ripples move hair cells, sending nerve signals to the brain. The brain processes these signals to identify the sound's type, intensity, and direction.

What are sounds fundamentally made of?

• Light waves

• Magnetic fields

• Air molecules

• Water currents

What is the first step in the process of hearing?

• Sound waves are funneled along the ear canal to the eardrum.

• The cochlear fluid vibrates.

• Sound waves are converted into electrical signals.

• The brain processes the sound.

Which bones in the ear amplify the vibrations?

• Hammer, anvil, and stirrup

• Femur, tibia, and fibula

• Malleus, incus, and stapes

• Radius, ulna, and humerus

What is the cochlear filled with?

• Air

• Blood

• Fluid

• Bone marrow

How does the brain identify sound?

• By interpreting electrical signals from the ear

• By analyzing light patterns

• By measuring air pressure

• By detecting temperature changes