Integumentary System Flashcards
3 Layers of Skin
Epidermis
Dermis
Subcutaneous
Functions of skin
Waterproofing
Temperature sensing
Perception
Identification
Communication
Wound repair
Absorbtion/Excretion
Production of Vit D
How is skin affected by aging?
the epidermis thins and flattens = (loss of protective barrier).
- the dermis experiences a loss of connective tissue (collagen) = risk of shearing and tearing.
- the subcutaneous layer decreases = less cushioning from physical injury
- decrease in amount of sweat and sebaceous glands = skin is dry, less thermoregulatory response.
- psychological impact of a loss of youthful appearance, linked to self-esteem Compounded by culture, beliefs, media, social norms and roles.
Pallor
Erythema
Cyanosis
Jaundice
Edema
extra fluid that accumulates in the intercellular spaces (abnormality).
Mobility and Turgor
mobility is the skin’s ease of rising and turgor is its ability to return to place when released (reflects elasticity).
Vascularity
smooth, slightly raised bright red dots that commonly appear in adults older than 30 yrs, are not usually significant.
Stage 1 pressure ulcer
intact skin appears red, but unbroke
Stage 2 Pressure Ulcer
partial thickness, loss of epidermis +/- dermis. Looks like an abrasion or open blister.
Stage 3 Pressure Ulcer
Stage 3 – full-thickness, extends into the subcutaneous tissue. Looks like a crater, may see subcutaneous tissue.
Stage 4 Pressure Ulcer
full-thickness, involves all skin layers and extends into supporting tissue; muscle, tendon, bone may be exposed, black or brown necrotic tissue (eschar