Memmler’s A&P Chap 6 The Skin. The Skin p108 The Integumentary system is made up of the skin and accessory structures: – Glands – Hair – Nails.

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Presentation transcript:

Memmler’s A&P Chap 6 The Skin

The Skin p108 The Integumentary system is made up of the skin and accessory structures: – Glands – Hair – Nails

Structure of the skin p 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 p Pallor Flushing Cyanosis Jaundice Diaphoresis Ecchymosis

Lesions p115 Surface lesions A. Macule B. Papule C. Vesicle D. Pustule

Deeper lesions p 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 p Dermatology Dermatitis – Atopic dermatitis – Psoriasis – Cancer Basal cell carcinoma Squamous cell carcinoma Melanoma

Skin Cancer: A. Basal cell carcinoma B. Squamous cell carcinoma C. Melanoma

Skin disorders continued, p119 Acne Impetigo Viral infections Fungal infection Alopecia

Skin disorders continued p Allergy – Pruritus – Urticaria Pressure ulcers: bedsores, decubitus ulcers

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