What is the layer of the epidermis that is found just above the basal layer?

The layer of the epidermis that is located just above the basal layer is the stratum spinosum. This layer plays a crucial role in the overall structure of the skin. The cells in the stratum spinosum are known as keratinocytes, and they become more flattened and polygonal as they move upward. This layer is responsible for providing strength and flexibility to the skin due to its dense network of desmosomes, which connect the keratinocytes together.

Additionally, the stratum spinosum acts as a protective barrier, as it contains Langerhans cells that are important for the immune defense of the skin. The presence of these cells helps to identify and fight off pathogens that might invade the skin.

Understanding the stratum spinosum and its relationship with the basal layer is essential for grasping the overall functionality of the epidermis in protecting the body. The other layers mentioned, such as the stratum corneum, stratum lucidum, and stratum granulosum, are either located above the stratum spinosum or serve different functions within the epidermis.