1. Which of the following areas lacks blood vessels and nerves? a. Epidermis b. Dermis c. Subcutaneous tissue d. Fatty tissue ANS: A REF: 142 2. What is a raised, thin-walled lesion containing clear fluid called? a. Papule b. Pustule c. Vesicle d. Macule ANS: C REF: 143 3. Which of the following is a common effect of a type I hypersensitivity response to ingestedsubstances? a. Contact dermatitis b. Urticarial c. Discoid lupus erythematosus d. Psoriasis ANS: B REF: 145 4. What change occurs in the skin with psoriasis? a. Recurrent hypersensitivity reactions b. Autoimmune response c. Increased mitosis and shedding of epithelium d. Basal cell degeneration ANS: C REF: 147 5. Which of the following best describes the typical lesion of psoriasis? a. Purplish papules that can erode and become open ulcers b. Firm, raised pruritic nodules that can become cancerous c. Moist, red vesicles, which develop into bleeding ulcers d. Begins as a red papule and develops into silvery plaques ANS: D REF: 147 6. Why do secondary infections frequently develop in pruritic lesions? a. Loss of protective sebum b. Entry of resident flora while scratching the lesion c. Blockage of sebaceous glands d. Increased sweat production