Once epidermal cells reach the stratum corneum, how long do they typically remain there before shedding replaces them?

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Study for the Galen Anatomy and Physiology (AandP) 1 Theory Exam 2. Gain confidence with flashcards, pinpoint areas needing focus, and strengthen understanding through detailed explanations. Excel in your exam with comprehensive preparation!

Multiple Choice

Once epidermal cells reach the stratum corneum, how long do they typically remain there before shedding replaces them?

Explanation:
Epidermal turnover and shedding timing. New keratinocytes originate in the deepest layer, move up through the epidermis, and become corneocytes in the outermost stratum. Once they reach the stratum corneum, they remain there for about two weeks before desquamation replaces them. This two-week dwell time fits with the overall roughly one-month cycle of epidermal renewal. So, the most accurate duration is about two weeks.

Epidermal turnover and shedding timing. New keratinocytes originate in the deepest layer, move up through the epidermis, and become corneocytes in the outermost stratum. Once they reach the stratum corneum, they remain there for about two weeks before desquamation replaces them. This two-week dwell time fits with the overall roughly one-month cycle of epidermal renewal. So, the most accurate duration is about two weeks.

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