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Understanding Membranes and Integumentary System in Human Anatomy

Learn about the different types of membranes covering surfaces and organs, including epithelial and connective tissue membranes. Explore the functions and structures of skin layers, glands, and sensory structures within the integumentary system.

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Understanding Membranes and Integumentary System in Human Anatomy

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  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

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