Superficial layers of epidermis Back  093.jpg (399048 bytes)  To
the left, which are the deeper layers of the epithelium in this
image, is the continuation of the stratum spinosum. The two to
six layers of cells that contain darkly basophilic granules make
up the stratum granulosum. The granules in these cells are
keratohyalin granules. The brightly acidophilic material to the
right that layer is made up of keratinized (cornified) squamous
epithelial cells and is known as the stratum corneum. Often, the
stratum corneum loses at least half of its original thickness
during processing.