keratiniseerunud

Keratiniseerunud is a Finnish term that describes a process of keratinization. Keratinization is a biological process where cells, particularly in the epidermis, undergo changes to produce and accumulate keratin, a tough, fibrous protein. This protein is a key component of skin, hair, and nails. In the context of skin, keratinization leads to the formation of the stratum corneum, the outermost protective layer of the epidermis. This layer is composed of dead, flattened keratinocytes that are continuously shed and replaced.

The process of keratinisation is vital for protection. The stratum corneum acts as a barrier against mechanical injury, chemical agents, and microbial invasion. It also plays a crucial role in preventing water loss from the body, thus maintaining hydration. The rate of keratinisation can be influenced by various factors, including hormonal changes, cell turnover, and external stimuli. When this process is disrupted, it can lead to various skin conditions. For instance, excessive or abnormal keratinisation can result in conditions like psoriasis or corns, where the skin becomes thickened. Conversely, insufficient keratinisation might compromise the skin's barrier function, making it more susceptible to damage and infection. The term "keratiniseerunud" therefore refers to the state of being keratinized or having undergone the process of keratinization.