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Prehensile / Grasp
Per Case-Smith, 5th ed. pg. 101 // NBCOT review guide, 6h ed. p 104-106
| Question | Answer |
|---|---|
| Looks at cube | 3 months |
| Looks & approaches cube | 5 months |
| Looks and crudely grasps cube with whole hand (raking) | 6 months |
| Scissors grasp - age | 8 months |
| Inferior pincer grasp - age | 9 months |
| Scissors grasp - definition | between thumb and side of curled index finger |
| Inferior pincer grasp - definition | between ventral surfaces of thumb and index finger, distal thumb jt. ext. -- beginning of thumb opposition |
| Inferior scissors grasp - definition | raking object into palm with adducted totally flexed thumb and all flexed fingers |
| Pincer grasp - age | 10 months |
| Pincer grasp - definition | between distal pads of thumb and index finger, distal thumb joint slight flexed, thumb opposed |
| Fine pincer grasp - age | 12 months |
| Palmer grasp - age | 5 months |
| Palmer grasp - definition | fingers on top surface of object, press it into center of palm with thumb abducted |
| Radial-palmer grasp - age | 6 months |
| Radial-palmer grasp - definition | fingers on far side of object press it against opposed thumb and radial side of palm |
| Radial-digital grasp - age | 8 months |
| Radial-digital grasp - definition | object held with the opposed thumb and fingertips |
| Inferior scissors grasp - age | 7 months |