Ectoderm
Teeth. Skin, hair and nails are all formed from a layer called the dermis.
Both hair and nails develop from the specialized keratinized cells called epithelial cells. These cells are found in the skin and are responsible for producing keratin, the protein that gives hair and nails their structure and strength.
The layer of cells in the embryo that will develop into the epidermis and nervous system is the ectoderm. This outermost germ layer forms during embryonic development and gives rise to structures such as the skin, hair, nails, and the entire nervous system, including the brain and spinal cord.
From basal layer. This layer is called as stratum basale.
Hair and nails are derived from the epidermal layer of the skin. Cells known as keratinocytes in the epidermis produce a protein called keratin, which is the main structural component of both hair and nails.
Hair is made of a protein called keratin, which is also found in nails and the outer layer of skin.
Nails are made of keratin, a fibrous structural protein. It is also a key component of hair and the outside layer of skin.
Hair and nails are primarily made up of a protein called keratin. Keratin is produced by specialized cells called keratinocytes, which are found in the outer layer of the skin called the epidermis. These cells continuously produce keratin as hair and nails grow.
The skin, hair, and nails provide a protective layer for the body. The skin acts as a barrier against harmful substances, prevents dehydration, and helps regulate body temperature. Hair helps to protect the scalp from UV radiation and provides insulation. Nails protect the fingertips and enhance tactile sensations.
The outermost layer of the skin, called the epidermis, contains dead skin cells that are constantly shed and replaced by new cells. This layer helps to protect the skin from external elements and plays a role in maintaining the skin's barrier function.
Keratin. It is also a key component of nails and the outer layer of human skin.