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Name the two layers of the epidermis consisting of cells without nuclei?
The two layers of the epidermis consisting of cells without nuclei are the stratum lucidum and the stratum corneum. These layers are composed of keratinocytes that have lost their nuclei as they mature and move towards the skin surface.
Which layer of the skin contains the corneum lucidum granulosum spinosum and basale?
The epidermis is the layer of the skin that contains the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. These layers make up the outermost part of the skin and are responsible for providing protection, regulating temperature, and facilitating the renewal of skin cells.
In the integumentary system what is considered dead cells?
stratum corneum in thin skin and stratum lucidum in the thick skin
What are the cells of the stratum corneum?
Cornified keratinocytes
Does the stratum corneum consist of layers of cornified dead cells?
Yes, the stratum corneum consists of layers of cornified dead cells. They are strong, full of keratin, and contain no nucleus.
What stratum is absent from most epidermis?
The stratum lucidum is absent from most epidermis, except for in areas with thick skin, such as the palms of the hands and soles of the feet. The stratum lucidum is a clear layer of dead skin cells found between the stratum granulosum and stratum corneum.
What is the outermost layer of the epidermis?
The outermost layer of the epidermis is the stratum corneum. The cells of the stratum corneum are dead, and this layer provides a protective layer for the other parts of the epidermis.Stratum corneum is the outer most layer.The outermost layer of the epidermis is the stratum corneum.The inferior layers below the stratum corneum are (from most superficial to most deep):Stratum lucidum (which is absent from hairless skin)Stratum granulosumStratum spinosumStratum basaleKeratin layer
What is the epidermal layer containing the oldest cells?
The epidermal layer containing the oldest cells is the stratum corneum. This layer consists of dead cells that have moved up from the deeper layers of the epidermis and are constantly shed and replaced.
Is the stratum corneum made up of cells that are cuboidal in shape?
No, the stratum corneum is made up of squamous (tile-like) cells, not cuboidal cells.
Does stratum germinativum contain keratin?
No, the stratum germinativum, also known as the stratum basale, is the deepest layer of the epidermis responsible for cell division and production of new skin cells. Keratin is found in the outermost layers of the epidermis, particularly in the stratum corneum, where it serves a protective function.
What are dead cells?
stratum lucidum
Where were the cells of stratum corneum initially produced?
stratum basale
