Coma CC5

Question 1

cheynne stokes respiratiorn means ___ isnt working

Answer 1

diencephalon

Question 2

Pupillary Light Reaction

sympathetic probem.. eyes can’t

Answer 2

dilate

Question 3

Pupillary light reflex

Parasympathetic problem then the eyes can’t

Answer 3

constrict

Question 4

OculoVestibular reflexes: vestibular nucleus excitation causes excitations of contralateral

Answer 4

lateral rectus (via 6)

Question 5

OculoVestibular reflexes: vestibular nucleus excitation causes excitations of ipsilateral

Answer 5

medial rectus via 3

Question 6

Decorticate = lesion above the

Answer 6

red nucleus of the midbrain

Question 7

Decorticate posture

what is flexed and adducted

Answer 7

arm, wrist, finger flexion, adduction of upper extremity

Question 8

decorticate posture what is extended

Answer 8

leg extension, internal rotation, plantar flexion

Question 9

Decerebrate = lesion below the red nucleus, release of __ output

Answer 9

vestibulospinal

Question 10

with both decorticate and decerebrate you get

Answer 10

extension of legs and planatr flexion

Question 11

sx of decerberate posturing

Answer 11

• internal rotation of arms, clenching of jaws, stiff extension of limbs - extension of trunk and legs (opisthotonos), plantar flexion

Question 12

Bilateral Diencephalic Stage (thalamus)

respiration pattern?

Answer 12

Cheyenes- Stokes

Question 13

Bilateral Diencephalic Stage (thalamus)

pupillary size?

Answer 13

Small pupils with small range of constriction

Question 14

Bilateral Diencephalic Stage (thalamus)

eye reflexes?

Answer 14

Eye reflexes normal (because brainstem is unaffected)

Question 15

Bilateral Diencephalic Stage (thalamus)

Motor Responses at rest and to stimulation

Answer 15

Motionless, bilateral Decorticate posturing upon stimulation

Question 16

if someone is in a coma it is the ___ or ____

Answer 16

reticular formation or bilateral cortex

Question 17

occulovestibular reflexes tests the inetrgrity of the

Answer 17

pons and portion of the midbrain

Question 18

___ consistes of opthotonos

Answer 18

decerebrate

Question 19

opsithotonos involves the

Answer 19

extension of the trunk and neck

Question 20

Bilateral Midbrain Stage (reticular activating system)

respiratory pattern

Answer 20

Central Neurogenic Hyperventilation, rarely cheynne stokes

Question 21

Bilateral Midbrain Stage (reticular activating system)

pupillary size and rxn?

Answer 21

Irregular, no pupillary constriction

Question 22

Bilateral Midbrain Stage (reticular activating system)

Oculocephalic and Oculovestibular Reflexes ??

Answer 22

Disconjugate eye reflexes - only CN6/ abduction present

Question 23

Bilateral Midbrain Stage (reticular activating system)

Motor Responses at rest and to stimulation

Answer 23

Motionless, bilateral Decerebrate posturing upon stimulation

Question 24

Central Neurogenic Hyperventilation suggests eihter (2)

Answer 24

1. bilateral midbrain stage (reticular activating system)
2. late 3rd nerve stage

Question 25

Small pupils with small range of constriction

suggests either

Answer 25

bilateral or uniulateral dienephalic stage

Question 26

No vestbibularoculo reflexes suggests

Answer 26

bilateral pontine stage

Question 27

if ipsilateral eye can’t move medially that suggests

Answer 27

late 3rd nerve stage (midbrain)

Question 28

Can cause either Decorticate or Decerebrate response

Answer 28

late 3rd nerve stage

Question 29

___ stage can cause Babinski’s sign on both sides

Answer 29

unilateral diencephalic

Question 30

Bilateral Pontine Stage

Motor Responses at rest and to stimulation

Answer 30

Motionless, Flaccid muscles

Question 31

Motionless, bilateral Decerebrate posturing upon stimulation

Answer 31

Bilateral Midbrain Stage (reticular activating system)

Question 32

Bilateral Midbrain Stage (reticular activating system)

Motor Responses at rest and to stimulation

Answer 32

Motionless, bilateral Decerebrate posturing upon stimulation

Question 33

no pupillary consitrction suggests

Answer 33

bilateral midbrain, bialteral pons, late 3rd nerve stage

Question 34

Ipsilateral pupil widely dilated suggests

Answer 34

late 3rd nerve stage

Question 35

ptosis suggests

Answer 35

Late 3rd Nerve Stage (midbrain)

Question 36

RR deep and regular –> central hyperventilation –> ___ lesion

Answer 36

midbrain

Question 37

uncal herination puts pressure on the

Answer 37

midbrain