Download Chapter 4.3: Tissues

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Most diverse
Never exposed to outside
Vascular—have blood vessels
Receptors for pain, pressure and temperature
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Support/Protection
Transportation
Storage of energy reserves (Adipose cells—
AKA fat cells)
Defense
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Cell Types
Fibroblasts
Most abundant
Produce and maintain connective tissue
Macrophages
Engulf damaged cells and wastes
Adipocytes
Fat cells
Mast Cells
Release chemicals to start immune response
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Collagen Fibers
Strong and flexible
Elastic Fibers
Will stretch
Reticular Fibers
Thin
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Fills in space between cells
Slows bacteria and pathogens
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Genetic
Abnormal fibrillin—gives connective tissue
strength and elasticity
Tall with abnormally long arms, legs and
fingers
Abnormal cardiovascular system
Weak aorta—may burst
Sudden, fatal loss of blood
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Areolar Tissue
Least specialized
Increased blood supply
Separates skin from muscle
Pads
Allows movement
Supplies blood to epithelia
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AKA: Fat
Loose Connective Tissue
Padding
Shock absorption
Insulation
Energy reserve
Collects in sides, buttocks, breasts and
abdomen
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Weight loss = deflated adipocytes
Easily regain these cells b/c the cells are still
there
Liposuction—remove adipocytes
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Mostly collagen
Tendons—attach muscles to bone
Ligaments—attach bone to bone