chapter 18 nervous system Flashcards Preview

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Flashcards in chapter 18 nervous system Deck (21):
1

Petite Mal seizure

-aka absent seizure
-sudden loss of consciousness for 10 seconds
-appears to day dreaming
-common in children ages 5-15

2

Grand Mal seizure

-major motor convulsion
-loss of consciousness and may fall
-tonic phase:body becomes rigid and extends
-clonic phase: involuntary movements of body with salvation, incontinence
-postictal phase:deep sleep for hours, confusion

3

Myoclonic seizure

-minor motor seizure-sudden the contraction of face/upper extremities
-no loss of consciousness

4

Febrile convulsions

Usually ages 6 months-6 years
-with high fever may have seizures lasting longer than 10 minutes

5

Assessing mental status

Includes the following:
-level of consciousness
-speech
-orientation
-knowledge of current events
-judgement (what would you do if...)
-abstraction ( interpret colloquialism)
-memory
-emotional response
-vocabulary
-calculation
-object recognition
-praxis

6

CNS II

Optic nerve-ends at retina
-visual acuity and optic discs

7

CNS III

Oculomotor nerve
-controls eye movements
-controls pupil constriction and accommodations

8

CNS IV

Trochlear nerves
-superior oblique muscles of eye

9

CNS V

Trigeminal nerves: optic, maxillary, mandibular
-test corneal reflex, sensory, motor (clench jaw)

10

CNS VI

Abducens
Lateral eye movements

11

CNS VII

Facial nerves
Test motor by smiling, puff up cheeks, raise eyebrows (looking for symmetry)

12

Common disorders

Headaches
Seizures
Loss of consciousness
Numbness/weakness
Visual disturbance
Dementia
Gait disturbance
Tremors
Pain

13

CNS VIII

vestibulococholear-hearing, balance, auditory testing

14

CNS XI

glossopharyngeal-test: gag reflex, say "ahhhh"

15

CNS X

Vagus-same test as xi

16

CNS XI

spinal accessory-test: turn head agains hand, shrug shouders

17

CNS XII

hypoglossal-stick out tongue

18

glascow coma scale

-perfect score 15
-verbal response 1-6
-motor response 1-5
-eyes opening 1-4

19

spinal reflexes

ankle reflex: S1
knee reflex: L2,3,4
supinator-C5,6
biceps-C5,6
triceps-C6,7
abdominal-T8,9,10,11,12
plantar-L5, S1
branchioradialis-C5, 6
patellar- L2,3,4
achilles- S1,2

20

muscle strength grading

0: total paralysis, no movement
1: palpable or visible contraction
2: active movement, gravity eliminated
3: active movement agains gravity
4: active movement, against some resistance
5: active movement against full resistance

21

Scoring DTRs

0: No response
1+: sluggish
2+: active
3+: brisk
4+: hyperactive