Epidermis
Both hair follicles and the epidermal layer of skin are part of the integumentary system and are located in the skin. They are involved in providing protection to the body. Hair follicles contain stem cells that regenerate hair, while the epidermal layer forms a barrier against pathogens and UV radiation.
The integumentary system, which includes the skin, hair, and nails, forms the protective covering of the body. The skin is the largest organ in this system and serves as a barrier against external threats. Hair and nails are specialized structures that grow from the skin and have protective and sensory functions.
Scale
stratum corneum in thin skin and stratum lucidum in the thick skin
stratum corneum
Nails are hard plates of dead epidermal cells that have been converted into keratin, a tough, fibrous protein. This transformation occurs in the nail matrix, where new cells are produced and push older cells outward, leading to the formation of the nail. The keratin provides strength and resilience, allowing nails to protect the fingertips and enhance tactile sensitivity.
Epidermal cells originate from stem cells in the basal layer of the epidermis. As they mature, they move up through the layers of the epidermis, undergoing changes in shape and structure. Once they reach the top layer, known as the stratum corneum, they are dead but serve to protect the body from external elements.
The outer most The statum corneum (horny layer) which is composed of 20-30 layers of dead cells
Epidermal tissue refers to the outermost layer of cells in plants. It protects the plant from physical damage, regulates water loss, and helps in gas exchange. The epidermis also contains specialized cells like trichomes and stomata.
The term for flaking or a dry patch made up of an excess of dead epidermal cells is "scaling." This can occur as a result of various skin conditions such as psoriasis, eczema, or dry skin. Proper moisturization and treatment of the underlying cause can help improve scaling.
i think there part of the integumentary, cuz that's for every thing dead like hair and skin:D
keratin