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Dermatology Skin, hair, nails, and mucous membranes (mouth and genitila).

Dermatology Skin, hair, nails, and mucous membranes (mouth and genitila). Important functions of the skin. - Protection against external injury - Fluid balance - Temperature buffering - Synthesis of Vit. D - Immune system - Cosmetic function. Why Dermatology ?. Cornified layer.

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Dermatology Skin, hair, nails, and mucous membranes (mouth and genitila).

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  1. Dermatology Skin, hair, nails, and mucous membranes (mouth and genitila).

  2. Important functions of the skin - Protection against external injury - Fluid balance - Temperature buffering - Synthesis of Vit. D - Immune system - Cosmetic function

  3. Why Dermatology?

  4. Cornified layer Epidermis Granular layer Spinous layer Basal layer Dermis

  5. Epidermis Dermis Subcutaneous

  6. Skin Anatomy Epidermis Basement membrane (dermoepidermal junction) Dermis Subcutaneous fat Epidermis: Four layers (from outside – inside) Cornified layer Granular layer Spinous layer Basal layer Dermis contains: Collagen fibers Elastic fibers Ground substances Blood vessels Nerves.

  7. Skin Appendages Hair follicle Sebaceous gland Arrector pili muscle Eccrine sweat gland Apocrine sweat glands

  8. Arrector Pilli muscle Hair follicle

  9. Sebaceous gland Eccrine gland Apocrine gland

  10. Nail Anatomy

  11. Examination Morphology Configuration Distribution

  12. Primary Lesions Secondary lesions

  13. Primary Lesions Macule Papule Plaque Nodule Wheal Vesicle Bulla Pustule

  14. a

  15. a

  16. a

  17. a

  18. Secondary lesions Crust Scale Ulceration Excoriation Scar Fissure Lichenification

  19. a

  20. a

  21. Color and Shape Distribution Configuration

  22. Some specific signs in Dermatology

  23. Dermatographism: When you stroke the normal skin  edema and erythema (you can write on skin!) .Seen in physical urticaria Kobener Phenomenon: Induction of new skin lesions on previously normal appearing skin by truma e.g. in psoriasis, wart, lichen planus

  24. Kobener Phenomenon

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