Cranial Nerves Flashcards
What are the cranial nerves?
- Olfactory
- Optic
- Occulomotor
- Trochlear
- Trigeminal
- Abducens
- Facial nerve
- Vestibulocochlear nerve
- Glossopharyngeal nerve
- Vagus nerve
- Accessory
- Hypoglossal
Cranial nerve 1
Change of smell
Nerve 2
Can you see equally well in both eyes?
Darken room is best
Acuity
Pupillary response - comments on size and shape of pupils
Visal Fields
Visal inattention
Accommodation
Fundoscopy
How do you test the occulomotor nerve?
Inspect eyes, looking for ppil abnormality, presence of ptosis or any abnormality of gaze
Eye movements - H pattern
Ask abot doble vision and look for nystagmus
Probably good to mention to the examiner that you are testing nerves 3,4 and 6
How to test trigeminal?
Sensation - both cotton wool and tip
Motor - masseter and pterygoid muscles
Corneal reflex
Jaw reflex
How to test facial nerve?
Inspect: assymetry
Motor: wrinkle forehead, screw up eyes, smile and show teeth
Any change in taste?
Vestibulocochlear nerve
Check for nystagmus
Check balance - gait - perhaps do heel-toe or romberg?
Hearing - whisper test, rinnes and webers
What does the glossopharyngeal muscle innervate?
Sensation from pharynx and tonsils
Sensation and taste from the posterior 1/3 of tongue
Stylopharyngeus muscles
What does the vagus nerve innervate?
Sensation and innervates palentine, pharyngeal and laryngeal muscles
How to assess nerves 9 and 10?
Aah - symmetrical movement of palate? uvula central?
Cough - sounds normal?
Gag - look at reflex contraction of the pharyngeal muscles
How to test accessory nerve?
Shrug shoulders
Turn head
How to test hypoglossal nerve
Inspection of tongue - deviation, fasiculations, wasting
Motor - tongue side to side
Speech
