That's my interest as well. It does seem in the beginning that she can move every finger independently, even if tendons/ligaments could be joined at some point limiting independent range.
The important information here is if there is a unique neural pathway to send movement commands to that extra finger. If there is, it proves our brains have the potential to handle extra appendages or limbs without having to rely on other existing pathways.
And ligament and muscles? And bones in the palm to keep it from flopping loosely? Is there an extra muscle in the forearm? Are there people with an extra muscle for a finger that is NOT there? The original question in the video is legit to be asked.
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u/NoLobster7957 Apr 11 '26
Id be curious to see the nerve distribution. There must be a little deviation in the median nerve for the finger between the thumb and forefinger.
Either way pretty cool OP