1 Unit 4 The Integumentary System I. Classification of Body Membranes A. Epithelial Membranes ﴾3﴿ 1. Cutaneous membrane > Stratified Squamous > Sits on Dense Connective Tissue > Skin: Dermis & Epidermis > Dry Membrane 2. Mucus Membrane > Epithelial Cell type varies > Sits on Loose Connective Tissue > Lines all body cavities that open to exterior > Wet & Moist Membrane 3. Serous Membrane > Simple Squamous > Sits on Areolar Connective Tissue > Lines body cavities closed to exterior > Found in pairs – parietal layer: lines body cavity – visceral layer: covers outside of organ *Layers are separated by Serous Fluid PeritoneumAbdominal PericardiumHeart PleuraLungs Visceral Pleura Parietal Pleura Serosae
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Unit 4The Integumentary
System
I. Classification of Body MembranesA. Epithelial Membranes ﴾3﴿
2. Mucus Membrane > Epithelial Cell type varies> Sits on Loose Connective Tissue> Lines all body cavities that open to exterior> Wet & Moist Membrane
3. Serous Membrane > Simple Squamous> Sits on Areolar Connective Tissue> Lines body cavities closed to exterior> Found in pairs– parietal layer: lines body cavity– visceral layer: covers outside of organ
• Stratified Squamous epithelium with ability to Keratinize & "Waterproof"> hardening & drying out of cells through production of Keratin> "Waterproof" from glycolipid produced that coats cells
> Stratum Corneum: outermost layer– 2030 layers of Keratinized dead cells