lecture 1: part 2 new born and primitve reflexes Flashcards
what are the 3 periods that gestation is divide into and how long is it
first trimester: weeks 1-12
second: weeks 13-26
third: weeks 27-40
when during gestation development is all major body systems established
first trimester: weeks 1-12
what happens during the second trimester (weeks 13-26
body proportion grow to newborn proportions
what happens during the 3rd trimester: weeks 27-40
body weight triples
body length doubles
body fat accumulates (helps w body temperature)
@ 36 weeks the lungs are developed
at how many weeks do the lungs become developed
36 weeks
when is a baby considered an embryo
first 8 weeks
when is a baby considered a fetus
8weeks until birth (40 weeks full gestation)
when is full gestation
40 weeks
what are common detrimental environmental influences on the perinatal that could influence development
STORCH
tobacco
smoke
alcohol
caffeine
drugs
what is STORCH
Syphillis
Toxoplasmosis
Other infections (HIV, Coxsackievirus, Varicella-Zoster Virus)
Rubella
CMV
Herpes
what is teh typical development of a child dependent on
Nervous system maturation
Genetics
Environment
what are the directional typical development
Cephalo-caudal (head to toe)
Proximal to distal
Gross motor to fine motor
what do newborns need to do
breathe , suck and swallow
what is the apgar score
test performed by delivering medical team to assess the infant
when is the apgar score delivered at
1 minute and 5 min and 10 minutes (if needed)
the apgar score is based on a total score of what
1 to 10 ( the higher the score , the better the baby is doing after birth
when is a new born , born
38-42 weeks (40 weeks is full term)
when is an infant considered premature? extreme premature
< 37 weeks
<28 weeks
what does a new born look like
head proportionately larger with short LEs
kyphotic, horizontal ribs
what is the ROM differences for a newborn
excessive DF
30° flexion contracture at hips and knees
what is a new born dominated by
flexion anf lack of antigravity mm control
In PRONE , how is the newborns UE , LE and head
UE flexion, held to
body, hands fisted
LE flexion, highly
positioned pelvis
Head: turned to
one side
In SUPINE , how is the newborns UE , LE and head
UE flexion
LE flexion,
abduction,
external rotation
Head: turned to
one side
-No anti-gravity neck flexion so
unable to hold in midline
During a pull to sit in a new born how is the head , what is present thruough the C curve and at the hips
head lag
flexion throughout C curve
flexed at hips
Pertaining to a NEWBORN, how is the head and C curve during SITTING
head forward: no control and head bobbing
C curve with flexion - no antigravity extension
what colors do a NEWBORN see
black and white
pertaining to a NEWBORN , is it easiest to fixate on a moving object ___ and ____
laterally and vertically
newborns prefer strong ___ colors
contracts at 8-9 inches away
what’s are primitive reflexes
involuntary motions that aid in the development of certain skills
As the baby’s brain matures and goes through
typically development these primitive reflexes and
associated involuntary movements should be
replaced with ___ ones.
voluntary
As the child’s CNS matures, the involuntary movements become controlled motor responses. If this doesn’t happen, the child will struggle with both ____ and ___ skills.
motor and cognitive
A 2018 study by Gieyztor, et al. suggested that preschool children who retained the ___ and ____ reflexes had difficulty with motor skills
TLR and ATNR
The same study of 35 children concluded that children with an unintegrated ___ reflex showed poor posture, poor eye-hand coordination, and focusing difficulties. They also had difficulty sitting still at a desk, learning to swim, and playing ball games. Ditto for children who retained the plantar, palmer, and Galant reflexes.
STNR
An unintegrated ATNR reflex could have
an adverse affect that may also lead to what?
poor eye
tracking
Asymmetrical tonic neck reflex (ATNR)
- weeks of gestation that it appears:
- integrates:
- stimulus
-response:
- weeks of gestation that it appears: 20
- integrates: 4-5 months
- stimulus: turning of head
-response: facial arm extends and abducts , occipital arm flexes and abducts
Rooting reflex
- weeks of gestation that it appears:
- integrates:
- stimulus
-response:
- weeks of gestation that it appears: 28 weeks
- integrates: 3 months
- stimulus: touch to perioral area of hungry infant
-response: turns head and lips toward stimulus
Suck-swallow
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
- weeks of gestation that it appears: 28-34 weeks
- integrates: 5 months
- stimulus: touch to lips and inside mouth for suckling and liquid for swallowing
-response: rhythm is excursions of jaw
Palmar grasp
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
- weeks of gestation that it appears: 28 weeks
- integrates: 4-7 months
- stimulus: pressure on palm of hand
-response: flexion of fingers
plantar grasp
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
- weeks of gestation that it appears: 28 weeks
- integrates: 9 months
- stimulus: supported standing on feet or pressure to sole fo the foot just distal to MT head
-response: flexion of toes
flexor withdrawal
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 28
- integrates:1-2 months
- stimulus: noxious stimulus to sole of foot
-response: flexion withdrawal of leg
crossed extension
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 28 weeks
- integrates: 1-2 months
- stimulus : noxious stimulus to sole of foot
-response: flexion of stimulated leg and then extension of opposite leg with adduction
Galant (trunk incurvation)
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 28 weeks
- integrates: 3 months
- stimulus: in prone , stroke paravetebral skin
-response: lateral curvature of trunk on stimulated side
Moro
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 28 weeks
- integrates: 3-5 months
- stimulus: head drop backwards ( stimulate for the startle reflex is loud noise with same response)
-response: abduction and extension of arms , splaying of fingers , may be followed by arm flexing and adduction
positive support
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 35 weeks
- integrates: 1-2 months
- stimulus: ball of feet in contact with firm surface
-response: legs extend to support weight
automatic walking/ reflex stepping
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 37 weeks
- integrates: 3-4 months
- stimulus : hold upright with feet on support
-response: high stepping movements with regular rhythm
Symmetrical tonic neck reflex (STNR)
-weeks of gestation that it appears:
- integrates:
- stimulus
-response:
-weeks of gestation that it appears: 4-6 months after full term delivery
- integrates: 8-12 months
- stimulus: flexion or extension of head
-response: with head flexion , arms flex and hip extend , with head extension arms extend and hips flex
during a positive support/ primary stnading reflex how long will the bay extend his legs before flexing his legs and collapsing into a sitting position
20-30 seconds
when does teh stepping/automatic walking reflex re appears at
10-15 months
when does the sucking reflex appear and integrate
appear around 28 weeks of gestation
integrated by 3 months
when does the moro reflex start to integrate by
3 month s
he palmar grasp reflex is a primitive, ____ response to a mechanical stimulus present in a newborn.
involuntary
what does the integration of the palmar grasp reflex signifies
cortical maturation and the development of voluntary motor milestones
a week response to the palmar grasps before 6 months or even after 7 months can be possible injury to what
peripheral nerve (root, plexus , or SC)
persistence of the palmar grasp reflex beyond 7 months is usually present in children
with what ?
spastic cerebral palsy.
the palmar grasp reflex can also reappear in adulthood, indicating a ___ ___
affecting the ____ or ____ frontal cortex (e.g., ischemic or hemorrhagic
stroke)
cortical lesion
medial or lateral
when is the tonic labyrinthine reflex present and integrated by
present at birth and integrated by 6 months
Tonic Labyrinthine Reflex (TLR) , tone in prone and supine ?
Prone – infant with greater flexion tone
Supine – infant with greater extension tone
for the Tonic Labyrinthine Reflex (TLR) when the neck is extended what is increased ? what about when the neck is flexed ?
-Neck extended: Increased
extensor tone and extension
of all limbs.
Neck flexed: Increased
flexor tone and flexion of all
limbs
when is the Tonic Labyrinthine Reflex (TLR) best seen at
3 months
are Tonic Labyrinthine Reflex (TLR) and symmetrical tonic neck reflex the same
NOOOOO w tonic u are holding baby
if the Galant reflex does not integrate by 9 months what may result in a problem be with
inability to sit still
what is the big development at one mounts
reduced effects of physiologic flexion as extension develops
for ONE month PRONE there is less what and what does the head do
less UE flexion , hip flexion , more anterior pelvic tilt
Head: able to lift
head momentarily
More active neck extension
for ONE month supine there is less what and what does the head do
less UE flexion , some reaching , hands fisted
less LE flexion reciprocal symmetric kicking
head is turned to one side (no anti gravity flexion yet)