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Normal·Integumentary·Skin

Stratified squamous epithelium (keratinized) — thin skin

Stain: H&E·Magnification: 20x·Tissue: Stratified squamous epithelium, keratinized·5 labeled regions
Stratified squamous epithelium (keratinized) — thin skin histology — Integumentary, Skin, H&E
Wikimedia Commons · File:Epidermis-delimited.JPG · https://commons.wikimedia.org/wiki/File:Epidermis-delimited.JPG (CC-licensed)
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Description

Multiple cell layers terminating in a non-nucleated keratin layer. Protects against abrasion + dehydration; lines all dry external surfaces.

Labeled regions (5)

  1. 1
    Stratum corneum

    Anucleate, keratinized squames; tough barrier layer.

  2. 2
    Stratum granulosum

    Keratohyalin granules — final maturation step before death.

  3. 3
    Stratum spinosum

    Polyhedral cells joined by desmosomes (spiny appearance).

  4. 4
    Stratum basale

    Single cuboidal layer on basement membrane; mitotically active.

  5. 5
    Dermal papilla

    Loose connective tissue projection into epidermis; carries vessels + nerves.

More integumentary histology

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Skin (scalp)