1. The Senses – The Ear

2. Ears https://www.youtube.com/watch?v=kzo45hWXRWU
/130;141

3. The Ear Complex organ that has 3 functions: Receive sound
Maintain balance
Detect body’s spatial movement

4. The Ear
Subdivided into 3 sections:
External ear
Middle ear
Inner Ear

5. The Ear
Subdivided into 3 sections:
External ear
Middle ear
Inner Ear

6. Outer Ear
Composed of 2 parts:
Pinna (outer ear)
Auditory canal

7. Pinna
Acts as a funnel that captures sound waves

8. Auditory Canal Brings the sound to the middle ear
Protects the ear drum and internal ear from insects, bacteria and dust
The canal has hairs and secretes a wax that capture the foreign particles

9. Middle Ear Composed of: Ear drum
Ossicles (hammer, anvil and stirrup) (also called malleus, incus and stapes)
Eustachian tube

10. Ear Drum
The ear drum is a very sensitive membrane that vibrates when sound hits it
It seals the middle ear from the outside world
The ear drum is transmits the vibrations to three small bones (ossicles)

12. Ossicles (smalles bones)
The first bone is called the “hammer”
The second is the “anvil”
The third is the “stirrup”
The bones transmit the sound vibrations of the ear drum to the inner ear