Which of the following is true concerning epidermal histology?
Understand the Problem
The question asks which statement is true regarding epidermal histology, specifically related to the layers of the epidermis and the functions associated with them.
Answer
Keratinocytes undergo apoptosis and produce keratin.
As keratinocytes arise from the stratum basale, they undergo apoptosis, producing keratin as a byproduct.
Answer for screen readers
As keratinocytes arise from the stratum basale, they undergo apoptosis, producing keratin as a byproduct.
More Information
Keratinocytes are the primary cell type in the epidermis, originating in the stratum basale. As they move upward, they produce keratin and eventually undergo apoptosis, contributing to the skin’s protective barrier.
Tips
A common confusion is assuming that all layers of the epidermis function similarly, but each layer has distinct cellular activities.
Sources
- Histology, Skin - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
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