(09) Cranial Nerves (table)

Question 1

1

1. Name
2. Brain Region Associated With
3. Function (Functional Components)
4. Clinical Examination
5. Symptom Seen After Injury

Answer 1

1. olfactory
2. cerebrum
3. smell (SVA)
4. Owner’s observations
5. anosmia (loss of smell)

Question 2

2

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 2

1. Optic
2. Diencephalon
3. Vision (SSA)
4. Menace Response
5. Anopsia (Loss of Vision)

Question 3

3

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 3

1. Oculomotor
2. Midbrain
3. Eye Movement (SE, VE)
4. Horizontal Eye Movement; pupillary light reflex
5. strabismus; eye deviated down and out. large pupil

Question 4

4

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 4

1. trochlear
2. midbrain
3. eye movement (dorsal oblique muscle: SE)
4. extend head and look for dorso-lateral strabismus
5. Cat: dorsal aspect of vertical pupil deviated laterally

Question 5

5

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 5

1. Trigeminal
2. Pons
3. Masticatory Movements, sensation from face (SE, GSA)
4. Jaw movement; eye blink reflex
5. bilateral damage = dropped jaw, asymmetric chewing, atrophy

Question 6

6

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 6

1. abducens
2. medulla
3. eye movement (lateral rectus muscle; SE)
4. lateral eye movement
5. double vision; strabismus; eye deviated medially

Question 7

7

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 7

1. Facial
2. Medulla
3. Facial movement; tast, rost. tongue (SE, SVA, VE)
4. Facial movement
5. Facial paralysis, drooling

Question 8

8

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 8

1. vestibulcochlear
2. medulla
3. hearing and balance (SSA)
4. horizontal and vertical eye movement
5. deafness, head tilt, nystagmus

Question 9

9

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 9

1. glossopharyngeal
2. medulla
3. tongue and pharynx (GVA, VE, SVA)
4. pharyngeal gag reflexes
5. choking, swallowing difficulty

Question 10

10

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 10

1. Vagus
2. Medulla
3. Pharynx, Larynx, Heart, Viscera (SE, VE, GVA, …)
4. Gag reflexes, blood pressure, heart rate
5. hoarseness, inspiratory dyspnea

Question 11

11

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 11

1. Spinal accessory
2. medulla
3. trapezius + three neck mm. (SE)
4. neck movement
5. weakened turning of neck

Question 12

12

1. Name
2. Brain Region Associated With
3. Function + Functional Components
4. Clinical Examination
5. Symptom Seen After Injury

Answer 12

1. Hypoglossal
2. Medulla
3. Tongue Muscles (SE)
4. Tongue Movement
5. Deviation of tongue toward side of lesion