11 when an individual is exposed to extremely cold

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11) 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. 12) Regardless of race, all human beings have about the same number of melanocytes.13) Cells in the stratum corneum undergo mitosis to keep the layer thick and protective. 14) 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.15) 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.16) Thick skin has a more extensive dermal layer than thin skin.17) The action of the arrector pili muscle is very similar in humans as it is in other mammals but its beneficial functions differ.Multiple Choice Questions1) Select the most correct statement concerning skin cancer.A) Most tumors that arise on the skin are malignant.B) Squamous cell carcinomas arise from the stratum corneum.C) Basal cell carcinomas are the least common but most malignant.D) Melanomas are rare but must be removed quickly to prevent them from metastasizing.
2) A needle would pierce the epidermal layers of the forearm in which order?
3) The major regions of a hair shaft include all of the following except ________.
4) The single most important risk for skin cancer is ________.
5) A splinter penetrated into the skin of the sole of the foot, almost to the papillary region of the dermis. Which layer of the epidermis would be the final layer injured?A) granulosumB) basaleC) lucidumD) spinosum
6) Which of the following is a skin sensory receptor for touch?
7) Which statement correctly explains why hair appears the way it does?

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