Final answer:
An artificial nail made of ADS plastic, also known as a nail extension, enhances the natural nail's length and appearance. They may contain toxic chemicals such as dibutyl phthalate, toluene, and formaldehyde. Natural nails grow from the nail matrix and are made up of dead keratinocytes.
Step-by-step explanation:
An artificial nail made of ADS plastic that is adhered to the natural nail to add length is typically referred to as a nail extension or false nail. These nail extensions are popular in cosmetic beauty treatments as a means to enhance the appearance of natural nails, giving them a more desirable shape and length immediately. The process of creating the artificial nail can involve various chemicals known to potentially contain toxic substances, such as dibutyl phthalate (DBP), toluene, and formaldehyde. Despite the cosmetic appeal of nail extensions, it is important to be aware of these substances due to their potential health risks.
Natural nails are an accessory organ of the skin made of sheets of dead keratinocytes at the distal ends of fingers and toes. The nail itself originates from the nail matrix located at the proximal end of the nail, where stem cells continuously divide to form the nail root and subsequently the nail plate, which becomes the visible part of the nail as it grows out from the epidermis.