Practical 1- Cranial Nerves Flashcards
What cranial nerves are located in the midbrain
CN 3,4
What cranial nerve is located in the pons
5,6,7,8
What nerves are at the cerebellopontine angle
5,7,8
What nerves were in the medulla
CN 9-12
Cribifrom plate houses
Olfactory nerves
Superior orbital fissure contains
3,4,6
Foramen rotundum contains
Maxillary V
Foramen ovale contains
Mandibular V
Internal auditory meatus houses
7,8
Jugular foramen contains
9,10,11
Hypoglossal foramen contains
12
Tests for CN 1
- Observation of nose
- Test each side with scent
- Internal exam of nose
Abnormal for CN 1
Anosmia- complete loss of smell
Hyposmia- decrease smell
Hyperosmia- increase smell
Parosmia- perversion of smell
Cacosmia- abnormal disagreeable smell, Psychological disorders or brain lesions
What is the MC cause of CN 1 dysfunction
Common cold
Cranial Nerve 2 exams
- Visual acuity- Snellens chart
- Peripheral vision- Confrontation
- Pupillary light reflex
- Ophthalmoscopic exam
CN 3 exams
- Corneal light reflex (3,4,6)
- Pupillary light reflex (2,3)
- 6 cardinal fields of gaze (3,4,6)
- Accommodation
CN 5 exams
- Corneal blink reflex
- LIght touch
- Sharp touch
- Inspect muscle of mastication
- Jaw jerk reflex
- Sensation on anterior 2/3 of tongue
CN 7 exams
- Smile/ frown, look up/down
2. Taste on anterior 2/3 of tongue
CN 8 exams
- Internal ear exam
- Weber/ Rinne
- Finger rustle
- Swivel chair
CN 9,10 exams
- Have patient say AHHHH
- Gag reflex
- Phonation of “Kuhn la mi”
CN 11 exam
- Shoulder shrug
2. SCM and Trapezius (lateral flexion, rotation, forward flexion)
CN 12 exams
- Stick out tongue
2. Tongue in check test
