T5: Ear and Its Development Flashcards
1
Q
Pain from a middle ear infection is mediated by what nerve?
A
The IX via the tympanic plexus
2
Q
Failure of central cells of meatus plus to canalize will give u?
A
an absent external acoustic meatus
meatal plug formed from 1st pharyngeal groove
3
Q
the tympanic membrane is form the?
A
1st branchial (pharyngeal) membrane
4
Q
what is the pathway for an infection of middle ear to mastoid air cells
A
epitympanic recess to mastoid antrum to mastoid air cells
