Skin {foreskin}| {prepuce} can cover glans penis. Circumcision removes prepuce.
skin color {pigmentation}|.
Soft mounds {comb, bird}| can be on domesticated-fowl crowns.
Mounds {crest, bird}| can be on bird-head tops.
Finger and toe tips have fingerprints that typically have swirls {whorl}|.
Meissner's corpuscles lie in rows just below epidermis in fingertip surface ridges {dermal papillae}.
Collagen makes skin firm, and lack makes skin thin {wrinkle}. Elastin makes skin flexible. Glycosaminoglycans absorb water. Retinol, retin-A, or retinoin can prevent wrinkles by stimulating collagen production.
Wrinkles {crow's feet}| can be at outer eye corners.
Loose skin {dewlap}| can hang from neck fronts.
Skin {wattle}| can hang from chicken, turkey, and lizard neck or throat.
At birth, skin can have discoloration or unusual texture in small regions {birthmark}|.
People can have red birthmarks {strawberry mark}| on faces or scalps.
mole or birthmark {nevus}|.
Thick skin {scab, wound} can cover healed wounds.
Thick hard coverings {callus, skin}| can be over plant or animal wounds.
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Date Modified: 2022.0225