The Integumentary System

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Presentation transcript:

The Integumentary System Chapter 5

Cutaneous Membrane Epidermis Dermis Hypodermis

Functions Protection Excretion of Salts, water, waste Thermoregulation Melanin production Vitamin D production Detection/Sensation

Epidermis

Epidermal Pigmentation Carotene Melanin UV Radiation Vitamin D Epidermal Growth Factor

Dermis Dermal circulation/blood supply Supports epidermis Strength and elasticity Cleavage lines Innervation

Dermal Structures

Hair

Glands

Nails

Repair

Burns Rule of Nines Burn treatment Fluid and electrolytes Metabolic demands Infection Immune system

Aging Epidermal thining Dendritic cells decrease in number Decline in Vitamin D Melanocytes decline in activity Decrease in glandular activity Reduction in blood supply Hair follicle activity declines Thinning of dermis Fading of secondary sexual characteristics Slowing of repair

System Integration