Final answer:
The nail is made from a protein called keratin, which is also found in skin and hair. Keratin is produced by keratinocytes in the epidermis, forming the tough fibers of the nails.
Step-by-step explanation:
The nail is made from a hardened protein called keratin. Keratin is a type of structural protein that gives skin, hair, and nails their hard, water-resistant properties. Nails are composed mainly of keratin, which is produced by cells called keratinocytes. These are the most predominant type of cell found in the epidermis. Hair and nails contain keratin, which forms fibers to make these structures tough and strong. The main keratinous plate that forms the nail is referred to as the nail body, while the nail grows from the nail root.
As for the other parts of the question, the nail bed does not refer to the middle portion of the hard nail plate, making the statement false. The lunula is the visible part of the nail matrix, known for its crescent shape, and the nail plate typically looks pink because it lies over the blood-rich nail bed.