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Grasp
Increase control of intrinsic muscles to hold flat objects (e.g. crackers)36
Radial Cross Palmar Grasp (primitive grasp)2, 53
Palmar Supinate Grasp (primitive grasp)2, 53
Spherical Grasp and Intrinsic-Plus Grasp36
Uses one hand to hold 2 cubes46
Can move the ulnar and radial portions of the hand independently46
Variety of grasps used precisely46
Figure 13/18.4.1
Figure 13/18.4.1
Primitive radial cross palmar grasp used during coloring; imitates a mark and scribbles spontaneously (13 months)
Figure 13/18.4.2
Figure 13/18.4.2
3 jaw chuck grasp
Figure 13/18.4.3
Figure 13/18.4.3
A palmar supinate grasp is used to imitate a mark and scribble spontaneously
Figure 13/18.4.4
Figure 13/18.4.4
Associated, mirrored reactions observed in left hand during pincer grasp with right
Figure 13/18.4.5
Figure 13/18.4.5
Disk Grasp
Figure 13/18.4.6
Figure 13/18.4.6
Holds two objects in one hand
Figure 13/18.4.7
Figure 13/18.4.7
Increased control of hand intrinsics to hold flat objects such as crackers
Figure 13/18.4.8
Figure 13/18.4.8
Independent use of ulnar and radial sides of hand
Figure 13/18.4.9
Figure 13/18.4.9
Rises to stand through half kneel
Figure 13/18.4.9
Figure 13/18.4.9
Spherical grasp used to hold a tennis ball
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