1. Human Hearing

2. The Human Ear

3. Some highlights: Frequency range
The audible human hearing range is from 20 Hz to 20 kHz
Most people can comfortably hear between 1000Hz to 5500 Hz

4. The Outer Ear
The outer ear gathers sound and channels it into the auditory canal toward the middle ear

5. The Middle Ear
The middle ear consists of the eardrum and three small bones: the hammer, anvil and the stirrup
The eardrum vibrates when it encounters sound waves
The bones transmit and magnify the vibrations

6. Middle Ear

7. The Inner Ear
The inner ear contains the cochlea and the auditory nerve
Vibrations are transformed into electrical impulses in the cochlea
The cochlea sends the impulses through the auditory nerve to the brain

8. Inner Ear

9. Infection in the Middle Ear and location of the ear components

10. DID YOU HEAR THAT????

11. Your Turn….
MHR Read pg
Do pg. 416# 1-15