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The epidermis is composed of 4-5 layers depending on the region of skin being considered. Those layers in descending order are the cornified layer (stratum corneum), clear/translucent layer found only on the palms and soles (stratum lucidum), granular layer (stratum granulosum), spinous layer (stratum spinosum), and basal/germinal layer (stratum basale/germinativum). The term Malpighian layer (stratum malpighi) is usually defined as both the basal and spinosum layers as a unit

The Layers of the Epidermis are.

1- Stratum Corneum ( Most Superficial )

2- Stratum Granulosum

3- Stratus Spinosum

4- Stratum Basale or Basal Layer ( Deepest Layer )

* Stratum Corneum = keratinized,dead,flattened scale-like and non-nucleated cells which are continuously shed as flake-like residue. * Stratum Lucidum = thin,clean layers found only in epidermis of the lips,palms and soles. * Stratum Granulosum = one or more layers of granular cells that contain fiber ang keratin and shriveled nuclei. * Stratum Spinosum =spiny layer, several stratified layer of cells in contact with centrally located, large oral nuclei and spine like process. * Stratum Germinativum = basal layer, simple layer of cuboidal cells in contact with the epidermis.

From deepest to superficial: Stratum germinativum (also called "stratum basale"), stratum spinosum, stratum granulosum, stratum lucidum (palms & soles), and stratum corneum, the outermost layer that is composed of dead skin cells.

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The cells that make up the epidermis are both living and dead. The top layer of the epidermis, known as the stratum corneum, is made up of dead cells called corneocytes. However, the lower layers of the epidermis contain living cells that are actively dividing and producing new skin cells.


What are the two kinds of cells that make up the epidermis?

squamous and cuboidal


What is contained in the epidermis?

The epidermis in humans contains cells (melanocytes) that make melanin, which gives skin its colour, Langerhans' cells which are the front line of defense of the immune system in the skin, and normal cells which make up your skin.


What 2 basic tissues make up the epidermis?

The two basic tissues that make up the epidermis are stratified squamous epithelium and connective tissue. The stratified squamous epithelium forms the outermost layer of the epidermis, while the underlying connective tissue provides support and nourishment to the epidermal cells.


What layer of the epidermis consists of up to 30 layers of dead cells?

The stratum corneum is the layer of the epidermis that consists of up to 30 layers of dead cells. It is the outermost layer of the epidermis and serves as a protective barrier for the skin against external elements. The dead cells in this layer are constantly shedding and being replaced by new cells from the lower layers of the epidermis.


What kind of cells is the epidermis made of?

The epidermis consists of stratified squamous epithelium cells. These cells in the epidermis are dead cells surrounded by the protein keratin.


How can you describe the similar cells that make up the make up epidermis tissue in the leaf and how other tissues have different shapes of cells?

The epidermis tissue in leaves is typically made up of flat, closely packed cells called pavement cells that help with gas exchange and protect the leaf from pathogens. Other tissues in plants may have different shapes of cells depending on their functions, such as elongated cells in xylem for water transport, or irregularly shaped cells in the spongy mesophyll for photosynthesis. These different cell shapes allow various tissues to perform their specific roles effectively in the plant.


What is the function of these epidermis onion cells?

The root cell's job is to gather minerals and and take it up the roots to the onion.


Which types of cells are not found in the epidermis?

Blood cells and muscle cells are not found in the epidermis. The epidermis mainly consists of keratinocytes, which are the primary type of cells in the outer layer of the skin.


What part of the integumentary system are made up of dead epidermal cells?

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What are most cells of the epidermis?

The majority of cells in the epidermis are keratinocytes. These cells produce the protein keratin, which helps the skin to form a protective barrier. Other cell types in the epidermis include melanocytes (produce melanin for skin color) and Langerhans cells (involved in immune responses).