fine motor Flashcards
what are non-prehensile movements?
pushing + lifting
not involving hands
what are prehensile movements?
precision + power grasps
uses palm + fingers
what are thumb opposition movements?
palmar pinch, pincer grasp (pad to pad)
what are no thumb opposition movements?
grasps not using thumb
what is the sequence of development?
lateral to medial (ulna–>radius)
proximal to distal
what is the reflex squeeze grasp?
4th month
traps object against body
flex wrist
traction response
what is the ulnar palmar grasp?
4th-5th month
ulnar side of palm
what is the palmar grasp?
5th-6th month
thumb not in use
object moves more central in palm
what is the radial palmar grasp?
6th-7th month
index + middle finger flex around object
thumb begins to oppose objet but still not involved
what is the raking grasp?
7th-8th month
fingers, hand, arm move as one to rake object
inferior scissors grasp used
uses fingers to scoop
what is the radial digital grasp?
8th-9th month
thumb opposition to radial fingers
space between object and palm
finger hold without palm
what is the developmental scissors grasp?
8th-9t month
object between adducted thumb and radial side index finger
lateral pinch
what is the inferior pincer grasp?
8th-9th month
object between adducted thumb and index finger but not tip of finger
what is the three jaw chuck grasp?
10th-12th month
object between pads of thumb, index finger, middle finger
what is the pincer grasp?
10th-12th month
object held between pad of thumb and pad of index OR middle finger