OT NBCOT Exam Human Development: Reflexes

Rooting Reflex - correct answer Onset age: 28 wks gestation Integration age: 3 months Stimulus: Stroke the corner of the mouth, upper lip, and lower lip. Response: Movement of the tongue, mouth, and/or head towards stimulus. Relevance: Allows searching for and locating feeding source. Suck-Swallow Reflex - correct answer Onset age: 28 wks gestation Integration age: 2-5 months Stimulus: Place examiner's index finger inside infant's mouth with head in midline. Response: Strong, rhythmical sucking. Relevance: Allows ingestion of nourishment. Traction Reflex - correct answer Onset age: 28 wks gestation Integration age: 2-5 months Stimulus: Grasp infant's forearms and pull-to-sit. Response: Complete flexion of UE. Relevance: Enhances momentary reflexive grasp. Moro Reflex - correct answer Onset: 28 wks gestation Integration age: 4-6 months Stimulus: Rapidly drop infant's head backwards. Response: First, arm extension/abduction, hand opening, then arm flexion and adduction. Relevance: Facilitates ability to depart from dominant flexor posture. Protective response. Plantar Grasp Reflex - correct answer Onset age: 28 wks gestation