Hand Intrinsic Muscles
The hand's intrinsic muscles — lumbricals and dorsal and palmar interossei — assist hand function and help extend the PIP and DIP joints. The intrinsic muscle glide position — MCP flexed with PIP and DIP extended — supports the extensor me…
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The hand's intrinsic muscles — lumbricals and dorsal and palmar interossei — assist hand function and help extend the PIP and DIP joints. The intrinsic muscle glide position — MCP flexed with PIP and DIP extended — supports the extensor mechanism (extensor hood) of the hand.