Question

Why does our fingers shrink when put in water for a long time

Answer 1

Answer:

wrinkly fingers are a reaction of our nervous system. When our fingers are in water for a long time, our nervous system causes the blood vessels present in the deeper layers of our skin to constrict. This in turn causes the deepr layer to shrink or contract.

Answer 2

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When we wash clothes, our hands are exposed to water for a long time. Our hands behave as a hypertonic solution and the outside of our hands behave as a hypotonic solution. ... So actually the water is not absorbed here just leaving and thus it shrinks.