Auditory System

• Science

What do you know about the Auditory System?

Outer/External Ear 

• Visible Structures
• Pinna - Attracts sound waves to determine direction
• Canal - Funnels the sound waves 

Middle Ear

• Eardrum - Vibrates
• 3 tiny bones - Malleus, Incus, Stapes (Hammer, Anvil, Stirrup)
• This part of the ear amplifies sounds

Inner Ear 

• Oval Window - Translates sound waves to vibrating fluid within the Cochlea
• Cochlea - Filled with fluid - Shell-like 
• Cilia - Tiny Hair Cells 
• Waves travel to cranial nerve to brain 

How would you define Hearing Impairment?

Hearing Impairment

• Idea: "An impairment in hearing, whether permanent or fluctuating, that adversely affects a child's education performance" 
• Mild, moderate, severe, or profound 

How would you define Deafness?

Deafness

• Idea: "A hearing impairment that is so severe that the child is impaired in processing linguistic information through hearing, with or without amplification"
• Present at birth, infectious disease, genetics

Impact on Child - Deafness

• Common impairment with a child with multiple disabilities
• Language development - Speech and language 
• Literacy skills - Reading and writing
• Communication - Social success

What structure is a part of the middle ear?

1. Pinna
2. Cochlea
3. Hammer, anvil, and stirrup
4. Ear Canal

Which part of the ear funnels sound waves?

1. Cilia
2. Ear Canal
3. Cochlea
4. Ear Drum

Which of these choices affects children who are deaf?

1. Speech and Language
2. Visual Impairments
3. Balance
4. Fine Motor Skills

In what ways can an individual become deaf?

1. Disease
2. From Birth
3. Genetics
4. All of the above