Galen Anatomy And Physiology (A&P) 1 Theory Exam 2 Practice

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

1 day 1 week 1 month 2 weeks

Correct Answer:

2 weeks

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.

Access more questions from this quiz

Continue to Galen Anatomy and Physiology (A&P) 1 Theory Exam 2 Practice for more practice questions and the full quiz experience.

Access More Questions