Chapter 5 Integumentary System

Chapter 5 Integumentary System Complete the following sentences 1. The superficial region of the skin is called ____________________, the middle region, ________________, and the deepest region, __________________________. 2. The __________________________________ or __________________________________ is found in the thick skin of the soles and palms only 3. The dermis has _____ layers, an upper ___________________ layer and a lower ____________________ layer. 4. ____________________ is the major skin pigment. Its color can be anything from ______________ to ____________. 5. ______________________________, which produce the main skin pigment ____________________, are found mainly in the ___________ epidermis 6. Skin appendages are derivatives of the __________________________. 7. Sweat glands are also known as ___________________________ glands. 8. ____________________ or ____________________ sweat glands are most numerous on the palms of the hands, the soles of the feet, and the forehead. 9. ______________________________ sweat glands are confined to axillary and anogenital areas. 10. ____________________ glands are specialized apocrine glands that produce milk after childbirth. 11. The secretion of ____________________ glands is supposed to deter insects from crawling into the outer ear canal. 12. The fine body hair of children is called ___________________ hair. Apply Your Knowledge 1. Which layer of the epidermis is the thickest layer? ________________________________________ 2. Stem cells are only found in which layer? ________________________________________ 3. Which layer of the epidermis is the thinnest layer? ________________________________________ 4. Which sweat glands are found on hairless skin? ________________________ 5. Which sweat glands do not function before puberty? ________________________ 6. Which sweat glands play a major role in temperature regulation? ________________________ 7. Which sweat glands are more active when we get nervous? ________________________ 8. Your roommate wants to have the hair on her legs removed by laser therapy. She is worried she might not be able to walk for a day or two because the laser could irritate the skin on the soles of her feet. Is that a valid concern? True/False Write “T” on the line if the statement is true and “F” if the statement is false. 1. The stratum basale is the outermost layer of the epidermis. _____________ 2. Melanin is found in the lowest layer of the dermis. _____________ 3. Hair is produced by the hair bulb and is composed primarily of dead keratinized cells. _____________ 4. The hypodermis is composed of adipose and dense connective tissue. _____________ 5. The dermis is rich in blood vessels and nerve fibers. _____________ 6. The protein found in large amounts in the outermost layer of epidermal cells is collagen. _____________ Matching Choose the item in column 2 that best matches each item in column 1. 1. Keratinocytes a) layer where cells are considered protective but nonviable 1. ____________ 2. 3. Epidermal dendritic cells Stratum corneum 4. Stratum basale 5. Eccrine glands 6. 7. Papillary layer Apocrine gland 8. Cerumen 9. Carotene 1 0. Epidermis b) serve an important function in thermoregulation c) upper layer of the dermis 2. ____________ 3. ____________ d) largely confined to the axillary region 4. ____________ e) macrophages that help activate the immune system 5. ____________ f) wax that deters insects g) makes the palms and soles look orange h) keratinized stratified squamous epithelium i) contains the mitotic viable cells of the epidermis j) the most abundant cells of the epidermis 6. ____________ 7. ____________ 8. ____________ 9. ____________ 10. ____________