Post on 15-Dec-2015
MEMBRANES & INTEGUMENTARY SYSTEM
MEMBRANES
Cover surfaces, organsLine body cavitiesProtect, lubricateTwo categories
- Epithelial tissue membranes- Connective tissue membrane
EPITHELIAL TISSUE MEMBRANES
Cutaneous
- Skin (“dry”)Mucous
- E.T. & C.T.
- “wet”; secretes mucus
- Lines open cavities
- Traps, lubricates, protects, secretes enzymes
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)
EPITHELIAL TISSUE MEMBRANES continued
- Pleura
*Line pleural cavities
*Surround lungs
- Peritoneum
*Lines abdominal cavity & covers organs
- Pericardium
*Surround the heart
CONNECTIVE TISSUE MEMBRANE
Synovial
- C.T.
- Lines joint cavities (freely movable), bursae, tendon sheaths
- Synovial fluid lubricates & provides nutrients
Integumentary - General
Organ SystemDermatology –
Study of Skin Disorders
Integumentary - General
Largest organ by weightIncludes all 4 primary tissue typesAids in excretion of waste products
Integumentary - Structure
Cutaneous Membrane (Dry)2 Layers:
- Epidermis
- Dermis (with deeper hypodermis)Accessory Structures (glands, sensory
structures, etc.)
Skin StructureSkin Structure
Slide 4.13b
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 4.4