What causes fingers to look wrinkled after soaking in water?

Our fingers wrinkled after soaking in because our fingers have thick layer of epidermal tissue. The outer layer of epidermal tissue is the stratum corneum which contains alternate layers of lipid and protein called keratin. keratin absorbs water when fingers are soaked in water. keratin swells but inside the fingers cells do not swell and fingers get wrinkled.

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explanation:

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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