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Anatomy of hand

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Anonymous

17y ago
Updated: 6/10/2024

well, there are the 8 carpal bones which are just above your wrist, and they just kind of look like rocks fitted together. then there are the metacarpals which are long & thin bones, and they go from the carpals up to your knuckles. then the 4 fingers (minus the thumb) have 3 phalanges each, which are also long & thin bones, whereas the thumb has 2 phalanges only. the joints between the phalanges are hinge joints and don't allow for any sideways movement (well they shouldn't, anyway), but the joints between the metacarpals and phalanges allow for a little bit of sideways movement (otherwise known as abduction and adduction). and as you probably know the metacarpophalangeal junction at the thumb allows for quite a lot of abduction & adduction (sideways movement), because the ligaments are looser. there are no muscles in most of the hand, the obvious exceptions being the one in the palm for the thumb, and the one in the palm near the little finger. the fingers and hand moves by tendons from the muscles in the forearm.

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17y ago

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