1
Q
Embryology of ossicles?
A
1st branchial arch - malleus head and neck, incus body and lateral process
2nd branchial arch - malleus manubrium, incus long and lenticular process stapes
2
Q
Parts of the temporal
Bone
A
Squamous tympanic Petrous mastoid
3
Q
Why is 2khz commonly affected for otosclerosis
A
The audiograms thus revealed a consistent “V”-shaped pattern with the turning point at 2kHz. This can be explained by the fact that 2kHz is the resonance frequency of the middle ear; thus, hearing is better preser- ved at this frequency
Anat
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