Label the indicated layers of epidermis in the table below. (each correct answer 0.5 point) Label A: Label B: Label C: Label D: Label E:

Answer

The image shows a cross-section of thick skin (found on palms and soles) because it contains five distinct layers of the epidermis. From the most superficial (top) towards the deep (bottom) layer, the labels are identified as follows: A. Stratum corneum: This is the outermost layer, consisting of many rows of dead, flat, keratinized cells that protect the underlying skin. B. Stratum lucidum: This is a thin, clear, translucent layer found only in thick skin. It sits directly below the stratum corneum. C. Stratum granulosum: This thin layer consists of cells that contain dark-staining granules (keratohyalin), which are involved in the keratinization process. D. Stratum spinosum: This is the thickest layer of the epidermis, characterized by 'spiny' look under certain preparations due to the desmosome connections between cells. E. Stratum basale: This is the deepest, single layer of cuboidal or columnar cells that rests on the basement membrane. It is the site of active cell division (mitosis).