memmlers ap chap 6 the skin. the skin p108 the integumentary system is made up of the skin and...
DESCRIPTION
Structure of the skin p Layers of the skin: – Epidermis – Dermis – Subcutaneous layerTRANSCRIPT
Memmler’s A&P
Chap 6 The Skin
The Skin p108The Integumentary system is made up of the
skin and accessory structures: – Glands– Hair– Nails
Structure of the skin p108-110• Layers of the skin:– Epidermis– Dermis– Subcutaneous layer
Accessory structures of the skin p108
•Sebaceous glands•Sudoriferous glands:•Eccrine glands•Apocrine glands
•Hair •Nails
Functions of the skin p112• Protection against disease• Protection against dehydration• Regulation of body temperature• Collection of sensory information
Observations of the skin p114-115• Pallor• Flushing• Cyanosis• Jaundice• Diaphoresis• Ecchymosis
Lesions p115
Surface lesionsA. MaculeB. PapuleC. VesicleD. Pustule
Deeper lesionsp 116
•Excoriation•Laceration•Ulcer•Fissure
Burns p116• Burns are assessed by the depth of damage
and the percentage of body surface area involved.
• Main risks with burns is dehydration and infection due to the disruption of the skin.
Tissue repair p117
• Epithelial tissue repairs easily.• Connective tissue (cartilage) repairs slowly.• Muscle tissue and nervous tissue : replaced
by connective tissue.
Wound healing p117• Affected by:– Nutrition– Blood supply– Infections– Age
Effects of aging on integ system 118• Wrinkles• Dermis thins• Elasticity is lost• Extra pigmentation: brown spots• Hair is not replaced as rapidly• Decreased numbers of sweat glands• Nails become brittle, thick, discolored
Care of the skin p118
• WASH IT REGULARLY!!!
Skin disorders p118-119• Dermatology• Dermatitis– Atopic dermatitis– Psoriasis– Cancer• Basal cell carcinoma• Squamous cell carcinoma• Melanoma
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Skin Cancer: A. Basal cell carcinomaB. Squamous cell carcinomaC. Melanoma
Skin disorders continued, p119• Acne• Impetigo• Viral infections• Fungal infection• Alopecia
Skin disorders continued p 120-121• Allergy– Pruritus– Urticaria
• Pressure ulcers: bedsores, decubitus ulcers