Cranial Nerve Lesions Flashcards
1
Q
Causes
A
3-12 from brain stem = brain stem pathology
- MS
- TRAUMA
- TUMOURS
2
Q
3, 4 + 6
A
Non functioning eye
3
Q
CN3
A
Ptosis
Down and out
Fixed dilated pupil
LEW nuclei dysfunction
4
Q
CN4
A
Diplopia = looking down
RARE = ALWAYS DUE TO TRAUMA
5
Q
CN6
A
Adducted eye
Sign of increased ICP
6
Q
CN5
A
Jaw deviates towards affected side
Loss of corneal reflex
Trigeminal neuralgia (incl. sensory pain/motor jaw pain in V1/V2/V3
7
Q
CN7
A
Facial drop with NO FOREHEAD SPARING
- Bell’s palsy
- Parotid inflammation
8
Q
CN8
A
Hearing loss
Loss of balance
Skull change (e.g. Paget’s), compression, middle ear disease
9
Q
CN9 + 10
A
Impaired gag reflex (+ swallowing, resp, vocal issues)
Jugular foramen lesion
10
Q
CN11
A
Can’t shrug shoulders/ turn head vs resistance
11
Q
CN12
A
Tongue deviation towards side of lesion
