The single most important risk for skin cancer is ________.
A) genetics
B) use of farm chemicals
C) race
D) overexposure to UV radiation
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Question 2) The major regions of a hair shaft include all of the following except ________.
A) external root sheath
B) cortex
C) cuticle
D) medulla
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Question 3) Select the most correct statement concerning skin cancer.
A) Squamous cell carcinomas arise from the stratum corneum.
B) Melanomas are rare but must be removed quickly to prevent them from metastasizing.
C) Basal cell carcinomas are the least common but most malignant.
D) Most tumors that arise on the skin are malignant.
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Question 4) The action of the arrector pili muscle is very similar in humans as it is in other mammals but its beneficial functions differ.
Indicate whether the statement is true or false
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Question 5) Thick skin has a more extensive dermal layer than thin skin.
Indicate whether the statement is true or false
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Question 6) When a patient is said to have third-degree burns, this indicates that the patient has burns that cover approximately one-third or more of the body.
Indicate whether the statement is true or false
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Question 7) 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.
Indicate whether the statement is true or false
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Question 8) Cells in the stratum corneum undergo mitosis to keep the layer thick and protective.
Indicate whether the statement is true or false
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Question 9) Regardless of race, all human beings have about the same number of melanocytes.
Indicate whether the statement is true or false
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Question 10) When an individual is exposed to extremely cold air the dermal blood vessels will dilate so that more blood will be brought closer to the outside surface of the skin.
Indicate whether the statement is true or false
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