Stratum granulosum

(histology) A layer of granular cells interposed between the stratum corneum and the stratum germinativum in the thick skin of the palms and soles.

One of the layers of the epidermis or the epithelium of the keratinized oral mucosa, situated just inferior the stratum corneum in keratinized tissues except in the palms of the hands and the soles of the feet, where it lies just inferior the stratum lucidum (transparent layer). Also called the granular layer.

The noun has one meaning:

Meaning #1: the layer of epidermis just under the stratum corneum or (on the palms and soles) just under the stratum lucidum; contains cells (with visible granules) that die and move to the surface

The stratum granulosum (or granular layer) is a layer of the epidermis found between the stratum corneum (and possibly stratum lucidum) and stratum spinosum.^[1] In this layer, keratinocytes are now called granular cells, and contain keratohyalin and lamellar granules.^[2]

Additional images

Epidermis and dermis of human skin

Section of epidermis

References

1. ^ James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 2. ISBN 0721629210.
2. ^ Marks, James G; Miller, Jeffery (2006). Lookingbill and Marks' Principles of Dermatology (4th ed.). Elsevier Inc. Page 7. ISBN 1-4160-3185-5.

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