Cranial Nerves Flashcards
What are the nerves providing ordinary sensation to the ear?
Facial and Glossopharyngeal
What type of innnervation is the autonomic functions?
Parasympathetic
What tests test the optic nerve?
Visual acuity
Visual fields
Pupillary reactions
Fundoscopg
Colour vision
What is ptosis?
Drooping of upper eyelid
A = SR
B = LR
C = IR
D = IO
E = MR
F = SO
What does a strong jaw jerk imply?
Upper motor neuron lesion
If you ear is blocked, what is wrong?
Not a nerve problem, it’s a conduction problem
If your vestibulocochlear nerve, what are the symptoms?
Balance, dizzy, lightheaded
What are the tests for vestibulocochlear nerve?
Dix-hallpike manoeuvre
Utenberger’s test
What 2 nerves do we test together?
Vagus
Glossopharyngeal
Does the palate usually move symmetrically?
Usually
What quality of speech occurs if the Glossopharyngeal nerve is compromised?
Nasally speech
Poor quality of speech
What nerve is compromised if you swallow things the wrong way or can’t cough?
Glossopharyngeal
What muscle shrugs out shoulders?
Trapezius
What nerves are you testing with the papillary light reaction?
Afferent II
efferent III
What nerves are you testing with a corneal reflex?
Afferent - V
Efferent - VII
What nerve is tested in jaw jerk?
Afferent and efferent - V
What nerves are tested in gag reflex?
Afferent - IX
efferent - X
Where is a bilateral oculomotlr nerve coming from?
Midbrain
Where would problems with cranial nerves III, IV and VI coming from?
Superior orbital fissure
Where are problems with CNVI and CNVII coming from?
Pons
Where are problems with nerves V and VIII coming from?
Cerebellopontine angle
What would cause unusual combinations of CN?
Chronic or malignant meningitis
What disease is associated with pure motor signs?
Myasthenia gravis
What can double vision imply?
Myasthenia or thyroid eye disease
