Memmlers AP Chap 6 The Skin. The Skin p108 The Integumentary system is made up of the skin and...
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Transcript of Memmlers AP Chap 6 The Skin. The Skin p108 The Integumentary system is made up of the skin and...
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Memmler’s A&P
Chap 6 The Skin
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The Skin p108The Integumentary system is made up of the
skin and accessory structures: – Glands– Hair– Nails
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Structure of the skin p108-110• Layers of the skin:– Epidermis– Dermis– Subcutaneous layer
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Accessory structures of the skin p108
•Sebaceous glands•Sudoriferous glands:•Eccrine glands•Apocrine glands
•Hair •Nails
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Functions of the skin p112• Protection against disease• Protection against dehydration• Regulation of body temperature• Collection of sensory information
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Observations of the skin p114-115• Pallor• Flushing• Cyanosis• Jaundice• Diaphoresis• Ecchymosis
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Lesions p115
Surface lesionsA. MaculeB. PapuleC. VesicleD. Pustule
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Deeper lesionsp 116
•Excoriation•Laceration•Ulcer•Fissure
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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.
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Tissue repair p117
• Epithelial tissue repairs easily.• Connective tissue (cartilage) repairs slowly.• Muscle tissue and nervous tissue : replaced
by connective tissue.
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Wound healing p117• Affected by:– Nutrition– Blood supply– Infections– Age
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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
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Care of the skin p118
• WASH IT REGULARLY!!!
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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
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Skin disorders continued, p119• Acne• Impetigo• Viral infections• Fungal infection• Alopecia
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Skin disorders continued p 120-121• Allergy– Pruritus– Urticaria
• Pressure ulcers: bedsores, decubitus ulcers