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عمومی::
سمت زند زیرین
Its tendon is inserted into the base of the proximal phalanx of the little finger, on its ulnar side.
The first dorsal interossei originates on the radial side of the second metacarpal and the proximal half of the ulnar side of the first metacarpal.
The second dorsal interossei originates on the radial side of the third metacarpal and the ulnar side of the second metacarpal.
The third dorsal interossei originates on the ulnar side of the third metacarpal and the radial side of the fourth metacarpal.
It's inserted on the ulnar side of the proximal phalanx of the middle finger and the extensor expansion.
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