Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Boundary of the Middle ear |
1) Roof 2) Anterior wall 3) Lateral wall 4) Floor
|
|
|
Roof of the middle ear is made by |
1) Tegmen Tympani |
|
|
Anterior wall of the middle ear is made by |
1) Canal for tensor tympani 2) Canal for auditory tube 3) Thin plate of bone
|
|
|
Floor by |
1) Jugular fossa
Vessels Internal Jugular Vein Internal Jugular Artery |
|
|
Medial wall by |
1) Processus cochleariformis 2) Promontary 3) Fenestra cochlea 4) Facial Canal 5) Fenestra Vestibulli 6) Sinus Tympani |
|
|
Posterior wall by |
1) Auditus Antrum 2) Pyramid 3) Thin plate of bone |
|
|
Lateral wall by |
1) Tympanic Membrane 2) Squamous temporal |
|
|
Contents of the middle ear |
1) Three ear ossicles (malleus, incus, stapes) 2) Ligaments of ear ossicles 3) Tensor tympani and stapedius muscle 4) Vessels supplying & draining middle ear 5) Chorda tympani nerve and plexus 6) AIr |
|
|
why is infection of middle ear more common in children |
Due to a shorter tube |
|
|
What is otitis media |
Infection of the middle ear is known as otitis media The pus from the middle ear may take one of the following paths 1) Discharged into external ear following tympanic rupture 2) May erode the floor and spread downwards causing i) Thrombosis, brain abscess ii) thrombosis in internal jugular vein, sigmoid sinus |
