1.34k likes | 1.35k Views
Integumentary System. Altered Functions. Vocabulary. Derma- Melan/o- Pachy- Sub- trich/o- Cyan/o- Onych/o-. Xer/o- Hidr/o- Kerat/o- Xanth/o- Follicul/o- Dactyl/o- Intra-. Skin Epidermis Dermis Hypodermis Sensory receptors Muscle Adnexa Hair and follicle Glands Sweat
E N D
Integumentary System Altered Functions
Vocabulary Derma- Melan/o- Pachy- Sub- trich/o- Cyan/o- Onych/o- Xer/o- Hidr/o- Kerat/o- Xanth/o- Follicul/o- Dactyl/o- Intra-
Skin Epidermis Dermis Hypodermis Sensory receptors Muscle Adnexa Hair and follicle Glands Sweat Sebaceous Nails Integumentary Regions
Epidermis Strata Histology C = corneum G = granulosum S = spinosum B = basale
Genetic Connective tissue Blood supply Neoplasia Drug Reactions Immune Underlying Disorders
Primary Lesions • Macules: colored circumscribed flat area, size varies, < 1cm • Papules: discolored raised area, < 2cm • Plaques: raised flat top area, > 1cm • Patches: circumscribed flat area of discoloration, < 1cm • Nodules: solid raised area, above or below skin, <1 cm • Tumor: discolored raised area, > 2cm • Wheals: slightly raised area with edema, size varies • Vesicles/Blister: fluid filled raised area < 0.5cm • Bulla/Cyst: fluid filled raised area, > 0.5cm • Pustules: pus-filled raised area, size varies
Erosions Ulcers Fissures Cracks Scales Excoriation Keloid Scar Lichenification Secondary Lesions
UV exposure UV A UV B Genetic Prevention Sun block UVA UVB Clothing Window tinting Etiology
Benign Seborrheic keratitis Keratocanthoma Verucae (warts) Actinic keratitis Malignant Basal Cell carcinoma Squamous Cell carcinoma Dysplastic nevi Malignant melanoma Skin Tumors
Aging = Wrinkles? • Skin changes • Chronological aging • Photo-aging (sun damage) • Chemical toxins • Cause • Decrease in collagen (inactive fibroblasts) • Increase in proteolytic activity due to collagenase