Chapter 5 Practice Questions

Answer false topic applications to health 36 describe

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Answer: FALSE Topic: APPLICATIONS TO HEALTH 36) Describe the changes that occur in skin with age. Answer: Aging produces changes in characteristics of elastic and collagen fibers; decreased melanocytes, fibroblasts, and Langerhans cells; diminished function of glands; loss of subcutaneous fat; thinning of dermis; decreased rate of replacement of epidermal cells, etc., as described on pp. 103. Topic: AGING AND THE INTEGUMENTARY SYSTEM 37) Describe the damage of first, second, and third degree burns. Answer: A first-degree burn involves only the superficial layers of the epidermis. Second-degree burns destroy the entire epidermis and may include part of the dermis. 8
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A third-degree burn is a full-thickness burn that destroys epidermis, dermis, and accessory structures of the skin. Topic: APPLICATIONS TO HEALTH 39) The layer of epidermis with the most layers of cells is the stratum _____. 40) Answer: corneum 41) Topic: STRUCTURE OF THE SKIN 43) Redness of the skin due to engorgement of dermal capillaries is called _____. Answer: erythema Topic: THE STRUCTURAL BASIS OF SKIN COLOR 49) Epithelial cells from the _____ give rise to the sebaceous glands during fetal development. Answer: hair follicles Topic: DEVELOPMENTAL ANATOMY 50) In the fifth or sixth month, hair follicles produce delicate fetal hair called _____, which is usually shed prior to birth. Answer: lanugo Topic: DEVELOPMENTAL ANATOMY 51) A mild sunburn is an example of a _____ burn that is defined as a burn that involves only the _____ layer of the skin. Answer: first-degree, epidermal Topic: APPLICATIONS TO HEALTH 9
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