1. MEMBRANES & INTEGUMENTARY SYSTEM

2. MEMBRANES • Cover surfaces, organs • Line body cavities • Protect, lubricate • Two categories • Epithelial tissue membranes • Connective tissue membrane

3. EPITHELIAL TISSUE MEMBRANES • Cutaneous • Skin (“dry”) • Mucous • E.T. & C.T. • “wet”; secretes mucus • Lines open cavities • Traps, lubricates, protects, secretes enzymes

4. Mucous Membranes

5. 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)

6. EPITHELIAL TISSUE MEMBRANES continued • Pleura • Line pleural cavities • Surround lungs • Pericardium • Surrounds the heart • Peritoneum • Lines abdominal cavity & covers organs

7. Peritoneum

8. CONNECTIVE TISSUE MEMBRANE • Synovial • C.T. • Lines joint cavities (freely movable), bursae, tendon sheaths • Synovial fluid lubricates & provides nutrients

9. Synovial Membrane

10. Integumentary - General • Organ System • Dermatology – Study of Skin Disorders

11. Integumentary - General • Largest organ by weight • Includes all 4 primary tissue types • Aids in excretion of waste products

12. Integumentary - Structure • Cutaneous Membrane (Dry) • 2 Layers: • Epidermis • Dermis (with deeper hypodermis) • Accessory Structures (glands, sensory structures, etc.)

13. Skin Structure