CSD 2230 HUMAN COMMUNICATION DISORDERS

1
CSD 2230HUMAN COMMUNICATION DISORDERS

• Topic 3
• Introductory Anatomy and Physiology of the
  Speech, Voice and Auditory System
• The Auditory System

2
The Hearing System

• Basic schematic diagram of the entire auditory
  system

3
The Outer Ear

• Major Landmarks
• Pinna
• CD ROM Ch.05.04
• External Auditory Meatus
• Tympanic Membrane
• CD ROM Ch.05.05

4
Function of the Outer Ear

1. Collect and funnel sound to the eardrum
2. Protection
3. Resonance

5
The Middle Ear

• Major Landmarks
• Middle Ear Space
• Eustachian Tube
• Mastoid
• Oval and Round Windows
• Ossicles
• CD ROM Ch 05.06

6
Function of the Middle Ear

1. Amplifier and transformer
2. Protection

7
The Inner Ear

• Major Landmarks
• Bony Labyrinth
• Membranous Labyrinth
• Auditory and Vestibular Portions
• Cochlea

8
The Organ of Corti
9
Central Auditory Pathways
10
Putting It All Together.