s9 extra from quiz

Question 1

adenoids are found where

complications of their enlargement?

Answer 1

within nasopharynx

• impede ventilation and drainage of middle ear > inc risk of ear infections
• block nasal passage of air (as they’re located close to posterior nasal apetures) > mouth breathing and snoring.

Question 2

which CN travel thru cavernous sinus?

Answer 2

• oculomotor
• trochlear
• trigeminal (opthalmic and maxillary divisions)
• abducens

Question 3

which clinical signs indicate an anterior cranial fossa fracture

Answer 3

CSF rhinnorhea (tear opens up the subarachnoid space)
periorbital ecchymosis (black eyes) > leaked blood into the orbit and orbital tissues

Question 4

clinical signs indicative of fracture involving petrous bone

Answer 4

• battles sign (bruising behind mastoid process)
• haemotympanum (blood in middle ear)
• CSF ottorhoea (CSF drip out of ear)

*part of middle cranial fossa

Question 5

opening of pharyngotympanic tube is found where?

Answer 5

nasopharynx

Question 6

Which bones form roof of nasal cavity

Answer 6

frontal
nasal
cribriform plate of ethmoid
sphenoid

Question 7

which bone would a surgeon need to drill thru to access pituitary gland?

Answer 7

sphenoid

Question 8

diff between conchae and meatus?

Answer 8

meatus =passage

conchae= projections of bone covered in respiratory mucosa