Where did you get those raisins on your fingers?
The
epidermis, the outer layer of the human
integument, is covered with a
protective oil, called
sebum. Sebum is secreted by the
sebaceous glands in the skin and acts as a
lubricant, giving the skin a somewhat
solvent-resistent quality. Sebaceous glands are not found in the epidermis of the
palms or the
feet. When your fingers have been in a
wet environment for an amount of time sufficient for the sebum to be
washed away, the outer layer of skin begins to absorb
water through
osmosis. This extra moisture waterlogs the epithelial layer of the skin, causing some places to
become protuberant, making wrinkles that somewhat resemble '
raisins' on your fingers. Your fingers are not, in fact, shriveled.
Don't worry... they won't stay that way.