Labels:bulletin board | cell | door | earth | fence | paramecium | sky | stairs | tree OCR: NAILS OUR NAILS cover the upper Artery Nail sides of the ends of your fingers and toes. They protect Vein these areas and help you to pick Nail bed up small objects. Nails are made of keratin an extremely tough [Half-moon wa ter- -repellent material. They appear pink because you can Cuticle see through them to the colour of the blood in your fingers Nail root How NAILS GROW Fingernails grow by about mm 1/8 inch) every month; toenails grow Skin more slowly Bone Nail growth 7OUR
