1. Basics Of Ear

Question 1

External ear includes :-
Middle ear includes :-
Internal ear includes :-

Internal acoustic meatus :-

Base of skull and cranial nerves

Cranial nerves : passing through

Olfactory nerve :-
Optic nerve :-

Oculomotor 3
Trochlear 4
Abducens 6
Ophthalmic branch of Trigeminal V1

Maxillary branch of trigeminal V2

Mandibular branch of trigeminal V3
Lesser pterosaurs nerve :-

5th cranial nerve ganglion :-
Meckels cave :-

Abducens nerve 6 :-
CN involved in most intracranial pathology :-

CN involved in any petrous apex pathology:-

CN 7&8 :-
Internal acoustic meatus

CN 9 10 11 :-

Aucostic neuroma :- 
Arise from :- 
Grows intracranially 
Upper pole :- 
Lower pole :- 

Sigmoid sinus :-
Inf of :-
Sigmoid thrombosis occurs due to :-

Answer 1

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