This document summarizes various reflexes present in infants, including general body reflexes like the Moro reflex, startle reflex, and grasp reflex. It also discusses facial reflexes such as the nasal reflex, blink reflex, and corneal reflex. Finally, it outlines several oral reflexes in infants including the rooting reflex, sucking reflex, swallowing reflex, and gag reflex. The document provides details on when each reflex develops and disappears during infancy.
A reflexes is an involuntary or automatic action that your body does in response to something without even to think about it.
Normally developing newborn should respond to certain stimuli with these reflexes.
This slide contain detail description of basic terminologies, neonatal (head to toe examination) assessment, neonatal reflexes, minor physiological handicaps of newborn
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A reflexes is an involuntary or automatic action that your body does in response to something without even to think about it.
Normally developing newborn should respond to certain stimuli with these reflexes.
This slide contain detail description of basic terminologies, neonatal (head to toe examination) assessment, neonatal reflexes, minor physiological handicaps of newborn
Growth and development of all age groups | Juhin JJuhin J
I searched around Google and haven't found a complete pack of content for "Growth and Development of all age groups"...
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3. What is reflex???
A reflex is an involuntary, or automatic, action
that your body does in response to something,
without even having to think about it.
6. 1. Moro Reflex
any sudden movement
of the neck initiates this
reflex
Elicited by -- pulling
the baby half-way to a sitting position from the
supine & suddenly let the head fall back to a
short distance.
Consists of rapid abduction & extension of
arms with the opening of hands. The arms
then come together as in embrace.
7. Clinical significance
Its nature gives an indication of
muscle tone
The response may be asymmetrical if
muscle tone is uneqal on the two
sides, or if there is weakness of an
arm or an injury to the humerus or
clavicle
This reflex usually disappears in 2 or 3
months
8. 2. Startle Reflex
Similar to moro reflex, but is initiated by a
sudden noise or any other stimulus.
In this reflex, the elbows are flexed and the
hands remain closed, there is less of embrace,
outward and inward movement of the arms
9. 3. Palmer/Grasp Reflex
When the baby’s
palm is stimulated, the
hand closes.
There is also a
corresponding planter
reflex..
Both normally
disappear by 24
months
10. Clinical significance
Exceptionally strong grasp reflex may be
found in the spastic form of cerebral palsy &
Kernicterus.
May be asymmetrical in hemiplagia & in
cases of cerebral damage.
Persistence beyond 2-3 months indicate
spastic form of crebral palsy.
11. 4. Walking/stepping reflex
When the sole of foot is pressed
against the couch, baby tries to walk.
it persists as voluntary standing.
12. 5. Limb placement reflex
When the front of
the leg below the
knee, or the arm
below the elbow is
brought into contact
with the edge of a
table, child lifts the
limbs over the edge
13. 6. Asymmetric tonic neck reflex
When the baby is
at rest and not
crying he lies at
inervals with his
head on one side,
the arm extended
to the same side,
and often with a
flexion of the
contralateral knee.
14. 7. Babinski’s reflex
Stroking of the lateral surface of the
planter surface of the foot from the
heel to the toe results in flexion of the
toe.
15. 8. Parachute reflex
Reflex appears at
about 6-9 months &
persists thereafter.
Elicited by holding the
child in ventral
suspension &
suddenly lowering him
to the couch.
Arms extend as a
defensive reaction.
17. 9. Landau reflex
Seen in horizontal suspension with the
head, legs & spine extended.
If the head is flexed, the hips, knees &
elbows also flex.
Normally present from 3 months, difficult
to elict after 1 year.
19. 10. Tendon reflexes
Simple monosynaptic
reflexes, which are
elicited by a sudden
stretch of a muscle
tendon
Occurs when the
tendon is tapped
Present throughout
life
21. 1. Nasal Reflex
Stimulation of the face or nasal cavity with
water or local irritants produces apnea in
neonates.
Breathing stops in expiration with laryngeal
closure and infants exhibit bradycardia &
lowering of cardiac output.
Blood flow to skin, splanchnic areas, muscles &
kidney decreases.
Flow to the heart & brain remains protected.
22. 2. Blink Reflex
Various stimuli provoke blinking.
Whether the child is awake or sleep,
pupils of the eye react to changes in
the intensity of light.
23. 3. Doll’s eye Reflex
Though a complex
mechanism, infants
hold fixation of faces,
movements or
changing intensity of
light within their visual
fields.
During the first week
they are able to
maintain these
fixations against
passive movement of
their bodies.
Eye
Head
24. 4. Corneal Reflex
Consists of blinking
when the cornea is
touched.
The satisfactory
demonstration of
these reflexes shows
that the stimulus,
whether sound, light
or touch, has been
received, that cerebral
depression is unlikely,
and that the
appropriate muscles
25. 5. Pupil Reflex
The pupil reacts to
light, but in the
preterm baby and
some full term babies
the duration of of
exposure to the light
may have to be
prolonged to elict the
reflex.
The light should not
be bright, for a bright
light will cause closure
of the eyes
27. 1. Rooting Reflex
When the infant’s cheek
contracts the mother’s
breast, the baby’s mouth
results in vigorous
sucking movements
resulting in the baby
rooting for milk.
When corner of mouth is touched, lower lip is
lowered, tongue moves towards the point
stimulated
28. When finger slides away, head turns
to follow it
When center of lip is stimulated, lip
elevates
Onset -- 28 weeks IU
Well established – 32-34 weeks IU
Disappears – 3-4 months
29. 2. Sucking
Onset~ 28
weeks iu
Well-
establised
~ 32-34
weeks iu
Disappear
~ around
12 months
Elicited
by~
introducing
a finger
into the
mouth
30. 3. Swallowing
Begins around 12
and half weeks IU
life.
Full swallowing and
sucking is
established by 32-36
weeks of IU life.
Their absence in full-
term baby would
suggest a
developmental
defect.
31. types
INFANTILE SWALLOW ACQUIRED
CONGENITAL REFLEX
•Until primary molars
erupt, infant swallows with
jaws separated and the
tongue thrust forward
using facial muscles.
•This is non-conditional
congenital reflex.
After eruption of posterior
primary teeth, from18
months of age onwards,
the child tends to swallow
with teeth brought
together by masticatory
muscle action, without a
tongue thrust.
32. 3. Gag reflex
In buccal cavity and
pharynx, the
ectoderm/endoderm zone
is towards the posterior
third of tongue.
Seen at 18 and half
weeks of IU life.
Touching here elicits a gag
reflex, a protective reflex.
33. 4. Cry
It is a non-
conditioned
reflex which
accounts for
its lack of
individual
character
and is of
sporadic
nature.
Starts as
early as
21-29
weeks IU
life.
34. 5. Mastication
It is a conditioned reflex, learned
initially
by irregular and poorly coordinated,
chewing movements.
The proprioceptive responses of TMJ
and
PDL of erupting dentition establishes a
stabilized chewing
pattern, aligned to
the individual dental
intercuspation.
