stratum basale: youngest karatincytes made by stem cells.
C. E. Orfanos has written: 'Feinstrukturelle Morphologie und Histopathologie der verhornenden Epidermis' -- subject(s): Diseases, Epidermis, Keratinization, Skin
the addition of keratin to the stratified squamous epithelial cells in the epidermis. Begins in the stratum spinosum and continues into the stratum granulosum.
Keratinization starts when protein in the form of food is digested and the body breaks it down into amino acids. These enter the blood stream and are carried to the papilla and the matrix at the base of the follicle where cells are formed that will eventually create hair.
its where the cells begin to die and where finally they will be shed from the skin. the cells at this stage become progressively flatter, and the cell cytoplasm is replaced with the hard protein keratin
Formation of keratin protein in cell is called keratinization .
Keratohyalin is a protein-rich structure found in the granular layer of the epidermis, the outermost layer of the skin. It helps to bind the keratin filaments together, providing structural support to the skin.
Stratum granulosum Once again, stratum granulosum is one of epidermal layers: not epidermal cells. My answer to this question is: Flattened cells of stratum granulosum that are going through keratinization process contain kerathyaline and lamellated granules.
Cells in the epidermis flatten out and die as they reach the surface of the skin to form a protective barrier against environmental factors like pathogens, UV radiation, and dehydration. This process, known as keratinization, helps to strengthen the skin and prevent water loss.
Keratinization is not typically a direct result of toxicity. Instead, it is a natural process in which epithelial cells undergo structural changes and transform into keratin-filled cells. However, certain toxins or irritants may disrupt this process, leading to abnormal keratinization.
The outermost layer of the epidermis, the stratum corneum, provides a protective barrier against environmental stressors and water loss. The innermost layer, the stratum basale, is responsible for cell division and replenishing the outer layers with new cells through keratinization.
Acually, they only partially have one. You see, they have an inner epidermis, but not an outer one. The epidermis acually was not the purpose to protect the plant in the first place!
The basal layer, also called the stratum germinativum is the most active part of the epidermis and the place where new cell growth takes place.