05_ActiveLecturePRS - Dandruff is caused by excessive...

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Dandruff is caused by excessive shedding of cells from the outer layer of skin in the scalp. Thus dandruff is composed of cells from which epidermal layer? 1. Stratum germinativum 2. Stratum spinosum 3. Stratum corneum 4. Stratum granulosum
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A splinter that penetrates from the skin’s surface to the third layer of the epidermis of the palm is lodged in which layer? 1. Stratum lucidum 2. Stratum germinativum 3. Stratum spinosum 4. Stratum granulosum
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Why does swimming in fresh water for an extended period cause epidermal swelling? 1. Fresh water is hypotonic to skin cells and moves in by osmosis. 2. Fresh water is hypertonic to skin cells and moves in by osmosis. 3. Stratum germinativum divides rapidly in fresh water. 4. Stratum corneum builds up in fresh water.
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Water from interstitial fluids is lost to the surrounding air by what process? 1. Insensible perspiration 2. Inconsequential perspiration 3. Interstitial perspiration 4. Immersion perspiration
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Some criminals sand the tips of their fingers so as not to leave recognizable fingerprints. Would this practice permanently remove fingerprints? Why or why not? 1. Yes, because the dermal papillae die if exposed. 2. No, because the original ridge patterns regenerate. 3. Yes, because the stratum germinativum thickens hiding ridge patterns. 4. No, but completely different ridge patterns will appear with re-growth.
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Mr. Wilson is exhibiting yellowed skin. Which of the following conditions does he have and what is its cause? 1. Vitiligo/loss of melanocytes or thyroid disease 2. Addison’s disease/excess secretion of ACTH 3. Pituitary tumor/excess secretion of MSH 4. Jaundice/liver disease
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cell to move from the stratum germinativum to the stratum corneum? 1.
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This note was uploaded on 09/13/2011 for the course BIOL 2401 taught by Professor Rameriz during the Spring '11 term at University of Texas at Dallas, Richardson.

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05_ActiveLecturePRS - Dandruff is caused by excessive...

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