Primitive Reflexes

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  • Primitive Reflexes
    • Moro Reflex:
      • Refered as the startle reflex.
      • At birth, peaks in the first months of life and begins to disappear around 3-4 months.
      • Occurs when the baby's head makes a sudden movement, tempature changes abruptly or they're startled by a suddent noise.
        • the head and legs will extend and the arms will outwards. Also, the palms are up and thumbs flexed. Shortly afterwards the arms are bought together and the hands clenched into fists and usually accompanied with crying.
    • Rooting/Sucking Reflex:
      • Rooting
        • Birth to around 4 months of age.
          • used when breastfeeding a new born infant. the infant will turn their head towards anything that strokes his cheek or mouth.
            • Will then search using the mouth until the object is found.
      • Sucking
        • Instinctively **** anything that touches the roof of their mouth and stimulates the way a child naturally eats. There are two stages of this:
          • Expression: activated when the ****** is placed between a child's lips and touches their palate. They will press between their tounge and the palate to draw milk.
          • Milking: tongue moves from areola to ******, moacing milk from the mother to be swallowed by the child.
    • Walking/stepping reflex
      • Present from birth but an infant this young cannot support their own weight.
      • The soles of their feet are flat they attempt to "walk" by placing one foot in front of the other.
        • This disappears at six weeks due to an increase of leg weight to strength.
    • Tonic Neck Reflex:
      • Present at one month of age and disappears at around four months.
      • When the head is turned to the side the arm on that side will straighten and the opposite arm will bend (sometimes the motion will be very subtle or slight).
      • Provides the infant with their first action of hand/eye coordination.
    • Palmar grasp reflex
      • Birth and persists until five or six months of age.
      • when an object strokes their palm the fingers will close and they will grasp.
      • The grip is unpredicable as it may be strong but they can release suddendly.


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