Which skin layer is several cell layers thick and contains cytoplasmic processes that are lost as cells move toward the surface?

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Multiple Choice

Which skin layer is several cell layers thick and contains cytoplasmic processes that are lost as cells move toward the surface?

Epidermal keratinocytes in the spiny layer are arranged in several cell layers and are connected to each other by desmosomes, which create cytoplasmic processes that extend between neighboring cells and give a prickly, or spiny, appearance. As these cells differentiate and migrate upward toward the surface, these cytoplasmic connections are reduced and the processes are lost, while the cells progressively flatten and keratinize. This layer sits between the single-layered basal layer and the granular layer, and its main role is to provide structural cohesion as the epidermis thickens. The other layers differ: the basal layer is a single mitotically active layer; the granular layer contains keratohyalin granules; the outermost layer is composed of dead, keratin-filled cells.

Which skin layer is several cell layers thick and contains cytoplasmic processes that are lost as cells move toward the surface?

Study for your anatomy test with Netter's Anatomy Practice Test. Utilize questions and illustrated guides to master human anatomy and ace your exam!

Which skin layer is several cell layers thick and contains cytoplasmic processes that are lost as cells move toward the surface?

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