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Chapter 5 - C hapter 5 T he I n tegumenta ry System False 1...

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Chapter 5: The Integumentary System 1) The apocrine sweat glands are fairly unimportant in thermoregulation. True 2) Skin surface markings that reflect points of tight dermal attachment to underlying tissues are called epidermal ridges. False 3) The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis. True 4) The outermost sheath of a hair follicle is the connective tissue root sheath. True 5) The protein found in large amounts in the outermost layer of epidermal cells is collagen. False 6) Joe just burned himself on a hot pot. A blister forms and the burn is painful. Joe's burn would best be described as a third-degree burn. False 7) Destruction of the matrix of the hair bulb would result in its inability to produce oil. False 8) The hyponychium is commonly called the cuticle. False 9) The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis. False 10) During the resting phase of hair growth, the matrix is inactive and the follicle atrophies. True 11) The most dangerous skin cancer is cancer of the melanocytes. True 12) The skin is not able to receive stimuli because the cells of the epidermis are not living and therefore there are no sensory receptors in the skin. False 13) The dermis is rich in blood vessels and nerve fibers. True 14) The hypodermis is composed of adipose and dense connective tissue. False 15) A physician is often able to detect homeostatic imbalances in the body by observing changes in the skin color. True 16) When an individual is exposed to extremely low air temperatures, the dermal blood vessels will dilate so that blood and heat will be dissipated. False 17) Regardless of race, all human beings have about the same number of melanocytes. True 18) Ceruminous glands are modified merocrine glands. False 19) The stratum corneum (outermost layer of skin) is a zone of approximately four layers of viable cells that are able to synthesize proteins that keep the outer layer of skin smooth and soft. False 20) The pinkish hue of individuals with fair skin is the result of the crimson color of oxygenated hemoglobin (contained in red blood cells) circulating in the dermal capillaries and reflecting through the epidermis. True 21) Hair growth and density are influenced by hormones, nutrition, and, in some cases, lifestyle. True 22) When a patient is said to have "third-degree burns," this indicates that the patient has burns that cover approximately one-third of the body. False
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