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.
Grasp reflex of a 5 month old baby. Palmar grasp reflex (sometimes simply called grasp reflex) is a primitive reflex. It appears as early as 16 weeks in utero and persists until five or six months of age.When an object is placed in the infant's hand and strokes their palm, the fingers will close and they will grasp it with a palmar grasp.t appears as early as 16 weeks in utero and persists until five or six months of age. When an object is placed in the infant's hand and strokes their palm, the fingers will close and they will grasp it with a palmar grasp.