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Motor Control > Unit 2: Reflexes > Flashcards

Unit 2: Reflexes Flashcards

1
Q

define reflexes

A

stimulus –> response

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2
Q

obligatory

A

if theres a cns lesion in babies brain

unable to come out of ATNR (reflex/cannot move outside of reflex)

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3
Q

How are reflexes classified? KNOW WHAT THE STIMULUS IS AND ITS RESPONSE

A

automatic: neonatal
spinal cord
brainstem
midbrain
cortical

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4
Q

Primary Walking stimulus/response/age of suppress…

A

stimulus: hold infant in supported standing, tilt trunk forward slightly

response: reciprocal extension & fanning of toes

age of suppress: 0-2mo

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5
Q

neonatal neck righting stimulus/response/age of suppress

A

stimulus turn head when in supine

response: log roll to same side

age of suppress: 0-3mo

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6
Q

rooting stimulus/response/age of suppress

A

stimulus: stroking of perioral region from corner of mouth to cheek

response: head turning to that side with mouth opening

age of suppress: 0-3mo

*impt feeding response

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7
Q

sucking / swallow stimulus/response/age of suppress

A

stimulus: touch lips, tongue, palate

response: results to automatic sucking

age: 0-6mo

*impt feeding reflex

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8
Q

palmar grasp stimulus/response/age of suppress

A

stimulus: pressure to palm ULNAR SIDE

response: grasping of object with slow release

age: 0-4mo

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9
Q

plantar grasp stimulus/response/age of suppress

A

stimulus: pressure to sole or lowering feet to floor JUST BELOW TOES

response: curling of toes

age: 0-9mo

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10
Q

moro reflex stimulus/response/age of suppress

A

stimulus: sudden neck extension

response: shoulder abduction; shoulder elbow, finger ext followed by arm flexion abduction

age: 4-6mo

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10
Q

startle stimulus/response

A

stimulus: sudden noise, clapping

response: shoulder abduction; shoulder elbow, finger ext followed by arm flexion abduction

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11
Q

rooting (AGAIN IN CHART) stimulus/response/age of suppression

A

Stimulus: stroking lips around mouth

reflex: moving mouth , head towards stimulus, in search of nipple

age: 4mo

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12
Q

positive supporting stimulus/response/age of suppression

A

stimulus: light pressure or weight bearing on feet

response: legs extend for partial weight bearing

age of suppression: 3-5 months replaces by volitional weight bearing w support

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13
Q

asymmetric tonic neck ATNR stimulus/response/age of suppression

A

stimulusL head turning to side

response: extremeties extend on face side, flex on occiput side

age 6-7 months

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14
Q

symmetric tonic STNR stimulus/response/age of suppression

A

stimulus: neck flexion and extension

response: arms flex, legs extend; arms extend, legs flex

age: 4-6 mo emerges- gone by 10mo

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15
Q

tonic labyrinthine reflex

A

prone position = maximal flexor tone

supine position = maximal extensor tone

16
Q

asymmetric tonic neck reflex ATNR STNR

A

stimulus: rotation of head

response: extension of face side extremeties & flexion of skull side extremeties

17
Q

placing reactions stimulus/response/age of suppression

A

stimulusL dorsum drag of foot or back of hand against edge of table

response: placing foot or hand onto table top

age 0-6mo

18
Q

optical and labyrinthine righting stimulus/response/age of suppression

A

stimulation: body is tilted

reaction: head orients to vertical position- eyes orient

19
Q

equilibrium reactions

A

SAFETY reactions which preserve the body under conditions of instability

*occur as baby matures in progression

20
Q

protective reactions

A

when safety reaction fails

21
Q

downward protective reaction

A

take baby by hips and tip them down- hands should bring both hands above head to save themselves

22
Q

protective reaction forward

A

baby is learning how to sit and reaches forward between legs (5 mo)

23
Q

sideward protective reaction

A

baby sitting protects itself from side (7mo)

24
Q

protective extension backwards

A

catches itself from falling back onto elbows (9mo)

25
Q

protective stagger reaction

A

baby does little steps to try to catch themselves from falling

26
Q

dorsiflexion reaction protective reaction

A

?????

foot goes into dorsiflexion to stop from falling

27
Q

what is reflex integration

A

the inhibition by neurological centers of MC which modify the reflex in such a way that the pattern of response is no longer stereotypical

28
Q

when do protective reactionsoccur

forward
side
backwards

A

5
7
9

29
Q
A

Motor Control (10 decks)

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