Anatomy

1
Middle Ear

• Anatomy
• Physiology
• Disorders

2
Anatomy

• The big picture
• Eustachian tube
• Mastoid
• Tympanic cavity
• Ossicles

3
The big picture

• Size and shape

4
Eustachian Tube

• Anatomy
• Function
• Differences between adults and children

5
Mastoid

• description
• aditus and antrum
• clinical implications

6
Tympanic cavity

• Description
• Oval window, round window promontory
• VIIth Nerve, chorda tympani

7
Ossicles

• Description

8
Physiology

• Impedance Matching
• Areal advantage
• Lever advantage

9
Middle Ear Muscles

• tensor tympani
• stapedius
• purpose

10
Disorders

• Suppurative Otitis Media
• Description
• Treatment
• Audiometric findings

11
Disorders

• Ossicular Discontinuity
• Description
• Treatment
• Audiometric findings

12
Disorders

• Cholesteatoma
• Description
• Treatment
• Audiometric findings

13
Disorders

• Serous Effusion of the Middle Ear (Serous Otitis
  Media)
• Description
• Treatment (see next page)
• Audiometric findings

14
Disorders

• PE Tubes

15
Disorders

• Negative Middle Ear Pressure
• Description
• Treatment
• Audiometric findings

16
Disorders

• Mucous Otitis Media
• Description
• Treatment
• Audiometric findings

17
Disorders

• Otosclerosis
• Description
• Treatment
• Audiometric findings

18
Summary