Primitive Reflexes Flashcards
Give all 6 primitive reflexes that start at 28 weeks of gestation.
Rooting, Sucking, Moro, Plantar Grasp, Flexor Withdrawal, and Crossed extension
Which reflexes begin at birth?
Palmar Grasp, ATNR, Tonic Labyrinthine, and some Associated movements
Give the integration time, stimulus, and response for the rooting reaction.
Integration: 2-5 months; 7 months while sleeping
Stimulus: Corner of mouth stroked outwards
Response: Lower lip drops at corner; Tongue moves towards stimulus; head turns toward side of mouth that was stimulated
What would be a normal response to the rooting reaction? What is abnormal?
Normal: Assists in finding nipple
Abnormal: prolonged may adversely effect control of oral motor musculature, feeding, & speech
What is the integration, stimulus, and response for the sucking reflex?
Integration: 2-5 months
Stimulus: Finger or nipple placed in infants mouth
Response: Rhythmical sucking
When looking at the sucking reflex give the normal and abnormal responses.
Normal: Important for feeding and self calming
Abnormal: Absence-> problems with feeding and calming; Persistence-> contributes to oral motor coordination problems with feeding and speech
What is the difference in nutritive sucking and non-nutritive sucking?
Nutritive: Draws out milk by creating negative suction in oral cavity
Non: Can perform minutes after birth, complex sequential pattern with definable components, beneficial with self calming.
The Moro Reflex is integrated around what time? What stimulates that and what is the response?
Integration: 3-5 months
Stimulus: Child is semi-reclined with head in midline. Support the infants head and shoulders and allow the head to drop back 20-30 degrees. Neck muscles are stretched.
Response: ABD/Ext of arms then ADD/Flex or arms
What is the normal response of the Moro reflex trying to accomplish? What would be considered abnormal and why?
Normal is trying to hold on to mommy
Abnormal: Asymmetry may indicate brain injury, peripheral nerve injury, or muscle injury. If this persists it will interfere with normal movement.
When does the Palmar Grasp reflex become integrated? What is the stimulus and response?
Integration: 4-9 months
Stimulus: Pressure against plan of hand from ulnar side to middle of palm.
Response: Fingers flex around finger or object
Normal response in the palmar grasp is significant why? Why is it bad if the response is abnormal?
Normal: Early experience of active closing of hand
Abnormal: If persists precludes normal hand function
After onset at 28 weeks gestation, the plantar grasp is integrated at ____ months. The stimulus for this reflex is ______ and the response is ________.
9-12 months
Pressure against sole of foot behind toes
Flexion of all toes
The ATNR is integrated at how many weeks? When is it the strongest?
Integration: 4-6 months
Strongest at 2 months old
What stimulus is given to get a response from ATNR?
Stimulus: Rotation of infants head to one side (actively or passively)
Response: Archers pose
Why is it important that a baby have a normal ATNR response? Why is it bad if they have an abnormal response?
Normal allows for hand eye coordination and visual regard, disappears when neck righting reaction with rotation appears.
Abnormal: Must be integrated for rolling, hands to mouth or midline, and creeping