MEMBRANES&SKIN (LECTURE NOTES)

MEMBRANES&SKIN (LECTURE NOTES) - MEMBRANES &...

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MEMBRANES & INTEGUMENTARY SYSTEM Biol 221 Chapter 4
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MEMBRANES Cover surfaces, organs Line body cavities Protect, lubricate Two categories - Epithelial tissue membranes - Connective tissue membrane
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EPITHELIAL TISSUE MEMBRANES Cutaneous - Skin (“dry”) Mucous - E.T. & C.T. - “wet”; secretes mucus - Lines open cavities - Traps, lubricates, protects, secretes enzymes
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EPITHELIAL TISSUE MEMBRANES continued Serous - E.T. & C.T. - “wet”; secretes serous fluid; Lines closed cavities - Folds to form two layers * Parietal – lines wall of ventral body cavity * Visceral – covers organs - Serous fluid between layers (lubricant)
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EPITHELIAL TISSUE MEMBRANES continued - Pleura * Line pleural cavities * Surround lungs - Peritoneum * Lines abdominal cavity & covers organs - Pericardium * Surround the heart
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CONNECTIVE TISSUE MEMBRANE Synovial - C.T. - Lines joint cavities (freely movable), bursae, tendon sheaths - Synovial fluid lubricates & provides nutrients
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Integumentary - General Organ System Dermatology – Study of Skin Disorders
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MEMBRANES&SKIN (LECTURE NOTES) - MEMBRANES &...

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