Review Integument

Review Integument - Epidermis Stratified, squamous...

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1 Epidermis Stratified, squamous keratinized epithelium Appendages hair follicles nails sweat glands sebaceous glands mammary glands Dermis Dense, irregular connective tissue Hypodermis Superficial fascia Cell Types in Epidermis Keratinocytes: intermediate filament is keratin Langerhans Cells dendritic cells present antigen vermiform/Birbeck granules Merkel Cells: mechanoreceptors Melanocytes: produce melanosomes
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2 Keratinocyte Cytomorphosis Stratum basale proliferative Stratum spinosum desmosomes lamellar/membrane-coating granules involucrin Stratum granulosum keratohyalin granules filaggrin Stratum lucidum thick skin Stratum corneum Melanocytes Melanin synthesized in melanosomes within melanocytes Melanin in synthesized from tyrosine by tyrosinase enzyme Tyrosinase activity is UV-inducible Cytocrine secretion of melanin granules into keratinocytes
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3 Papillary dermis: numerous cells
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Review Integument - Epidermis Stratified, squamous...

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