1. Memmler’s A&P Chap 6 The Skin

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

3. Structure of the skin p108-110 Layers of the skin: – Epidermis – Dermis – Subcutaneous layer

4. Accessory structures of the skin p108 Sebaceous glands Sudoriferous glands: Eccrine glands Apocrine glands Hair Nails

5. Functions of the skin p112 Protection against disease Protection against dehydration Regulation of body temperature Collection of sensory information

6. Observations of the skin p114-115 Pallor Flushing Cyanosis Jaundice Diaphoresis Ecchymosis

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

8. Deeper lesions p 116 Excoriation Laceration Ulcer Fissure

9. 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.

10. Tissue repair p117 Epithelial tissue repairs easily. Connective tissue (cartilage) repairs slowly. Muscle tissue and nervous tissue : replaced by connective tissue.

11. Wound healing p117 Affected by: – Nutrition – Blood supply – Infections – Age

12. 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

13. Care of the skin p118 WASH IT REGULARLY!!!

14. Skin disorders p118-119 Dermatology Dermatitis – Atopic dermatitis – Psoriasis – Cancer Basal cell carcinoma Squamous cell carcinoma Melanoma

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

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

17. Skin disorders continued p 120-121 Allergy – Pruritus – Urticaria Pressure ulcers: bedsores, decubitus ulcers