Ears

1
Ears
2
Parts

• Outer Ear
• Middle Ear
• Inner Ear
• External Auditory Canal
• Eardrum
• Hammer
• Anvil
• Stirrup
• Oval Window
• Semicircular canals
• Cochlea
• Auditory Nerve
• Eustachian tube

3
Balance

• Semiciruclar canals
• Fluid and tiny hair cells inside
• Sends messages to brain when you move

4
Protection

• Cover ears when cold
• Keep objects out
• Do not expose to loud sounds
• Normal conversation is 60 decibels
• Over 85 decibels can harm hearing over time
• 125 decibels can cause serious damage in one
  short exposure