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7.2: Keywords

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    Please familiarize yourself with these keywords before you start reading the chapter:


    Apocrine secretion involves exocytosis of membrane-bound secretory vesicles. This is the major secretion form of epitrichial glands (often referred to as just “apocrine glands”) and eccrine glands.
    Cell-to-cell adhesion complexes comprised of multiple proteins that tightly adhere cells (keratinocytes) of the epidermis. Desmosomes of the stratum spinosum are readily apparent on histology.
    Holocrine secretion involves rupture of the secretory cell, thereby releasing the cytoplasmic contents. This is the major secretion form of sebaceous glands.
    A structural protein produced by keratinocytes that contributes significantly to the structural integrity of the epidermis.
    A general term referring to epithelial cells of the epidermis, including those of the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum.
    Cells derived from the neural crest that produce the pigment melanin. Melanocytes reside within the basal layers of the epidermis, producing and then transferring melanin to keratinocytes.
    Secretory epithelial cells that contribute to the production of sebum, a lipid-rich fluid that coats hair and the epidermis. Clusters of sebocytes comprise sebaceous glands.

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