It is relatively common for the Flexor digitorum superficialis to be missing from the little finger, bilaterally and unilaterally, which can cause problems when diagnosing a little finger injury.
The grasp reflex (newborn reflexes) It occurs when placing an object, such as a finger, onto the infant's palm (palmar grasp) or sole (plantar grasp). The infant responds by flexing fingers or curling the toes. The palmar grasp usually disappears by 3 to 4 months and the plantar grasp by 6 to 8 months.
The newborn follows the path of an object, crying or. pulling backward if it comes too close to his or her face. By the. age of 1 month, the baby has a pupillary reflex, can distinguish. between the face of the mother and a stranger, and differentiates. between brightness and darkness. Bright lights cause discomfort.