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Asked by Tommy to Stephanie F, Philippa H, Penny T, Michael S, Lisa R, Hradini K, Clara Ferreira on 15 Feb 2024.
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Clara Ferreira answered on 15 Feb 2024:
Do you mean the anatomic structure? With anatomy, I mean the muscles, nerves, bones,…? Well, the hand actually seems tiny in comparison with other parts of the body, but it has quite a high number of bones (small ones though) – so we have a total of 27 bones in each hand. But our hands do have 27 parts, so all these little bones are connected by something that we call joints and ligaments (that is why we can move them and, for example, write on a keyboard (like I am writing now) with my hands). When you move your hands, you can do all sorts of movements with it – that is the joints and ligaments working.
In the end, because our hands still need oxygen and nutrients, they also have something called blood vessels – when you get hurt, sometimes, some blood comes out of it, those are the little blood vessels in it.
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Michael Schubert answered on 24 Apr 2024:
Clara has given you a great answer here! Our hands are quite unique because only a few organisms have opposable thumbs like ours. Did you know that the only muscles in your fingers are the ones that make the tiny hairs on them stand up? All the muscles that control your finger movements are actually in your hands and arms; the fingers just have ligaments and tendons that connect to the muscles and bones and let them move our fingers!
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