Reflexes Flashcards
Reflex
stereotyped, involuntary response to a given stimulus
Dominant movement forms during
-last 4 months of prenatal and first 4 months after birth
Infant reflexes occur
subcortically- below level of the higher brain centers
We are born with many ______ reflexes
primitive
Primitive reflexes have 3 things
- specific duration
- specific function
- cause for concern when irregular
Primitive reflexes emerge in utero, are present at birth, and disappear/are inhibited/controlled by higher brain centers by
6-12 months
Most infant reflexes do not last beyond
the first year
What reflexes endure into adulthood
- Blinking reflex
- Cough reflex
- Gag reflex
- Sneeze reflex
- Yawn reflex
- Knee Jerk reflex
Infant reflexes can reoccur in adults who have
- stroke
- brain damage
Primitive reflexes occur ____ and are depressed at ___________.
occur at birth, depressed at 6 months
Primitive reflexes are important for
-protection, nutrition, and survival
Are postural reflexes still subcortical?
yes
Labyrinthe leads to
upright posture
Palmar grasp leads to
grasping
stepping leads to
walking
Reflexes should be tested in a _____ area
quiet
If a child is lacking Moro reflex may signify
Cerebral birth injury
If a child is lacking Asymmetric tonic reflex
may indicate cerebral palsy or other neurological problems if persists past time
When retained or not integrated may be suggestive of:
CNS pathology or neurodevelopmental delay
Palmar grasping reflex
S-palm stimulated
R-4 fingers close, not thumb
Duration- 5 months gestation-> 4 months post partum
Function- survival, hold onto parent, leads to voluntary reaching and grasping
Concerns- make indicate a neurological problem-spasticity, grasp patterns, fine motor coordination, oral motor overflow
Sucking reflex
S-touch of lips R-sucking D-utero - 3 months Concerns- no reflex problematic for nutrition in conjunction w searching