Chapter 46 Structure, Function, and Disorders of the Integument Questions & Answers 100% Verified solution A+ Lesions on the elbows and knees that are well demarcated, thick, silvery, scaly, and erythematous characterize which type of psoriasis? a. Plaque b. Inverse c. Guttate d. Erythrodermic - ANS-a. Plaque Which component of the epidermis initiates immune responses and provides a defense against environmental antigens? a. Langerhans cells b. Merkel cells c. Keratinocytes d. Melanocytes - ANS-a. Langerhans cells Which cells of the dermis release histamine and play a role in the hypersensitivity reactions of the skin? a. Histiocytes b. Fibroblasts c. Mast cells d. Macrophages - ANS-c. Mast cells Which cells of the dermis secrete connective tissue matrix? a. Macrophages b. Mast cells c. Fibroblasts d. Histiocytes - ANS-c. Fibroblasts Which gland releases secretions that are important in thermoregulation and cooling of the body through evaporation?
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