2017 MCQ HNN Flashcards
Patient had trauma to part of face, and has numbness at area of chin, what nerve is most likely damaged?
Mental nerves
What branch of the facial nerve emerges from the parotid plexus and passes superior to the jaw?
Marginal mandibular
What would you expect if there was compression at L3?
Loss of sensation at knee and inner thigh
What does the subarachnoid space contain?
CSF
Where is CSF produced in the brain?
Choroid plexus in lateral, third and fourth ventricles
What region of the basal ganglia would a patient have a lesion in if they present with random, involuntary movements of their left arm?
As basal ganglia is above decussation, patient would have a lesion in the right side of the basal ganglia in a structure involved in the indirect pathway
What should be the immediate concern if there is infection of CN VIII and some signs of CN VII involvement?
Eyes not being able to close
CT scan of neck pointing to a circular thing. This ‘thing’ was lateral to another circular thing and they form pairs that were present on both sides. What is this structure?
Internal jugular vein
What would you expect to see with a lesion in the left ventral lateral column?
Unilateral loss of pain sensation on the contralateral side
Patient has loss of pain sensation on left half of body and loss of sensation of right half of face. Where is the potential site of the lesion?
Right substantia nigra or right lateral medulla as spinothalamic tract runs through here
You observe that patient has diplopia when he looks to the left and downwards. What extra-ocular muscle is potentially damaged?
Inferior rectus
Which nerves are involved in the corneal reflex?
CN V and VII
Histological diagram showing a cross-sectional view of peripheral nerves with arrow pointing to a structure
Answer was perineurium
Patient has GCS of 6 with pupil opening in response to pain and abnormal motor extensor response. What would you expect the verbal response to be?
Incomprehensible speech
Where is the mucus from in OME?
Goblet cells
