A nurse is teaching a client about the role that skin plays in forming a barrier to environmental agents and microorganisms
The nurse would recognize that which of the following types of cells/junctions are involved in the communication and regulation of the immune response and the secretions of cytokines?
A)
Gap junctions
B)
Desmosomes
C)
Adherens junctions
D)
Keratinocytes
Ans:
D
Feedback:
Keratinocytes are now known to be active secretory cells that play an important role in the immunobiology of the skin by communicating and regulating cells of the immune response and secreting cytokines and inflammatory mediators. Gap junctions allow ions and molecules to pass between skin cells, and adherens junctions provide a mechanical connection between cells. Desmosomes are localized patches or plaques that hold two cells tightly together by proteins called cadherins. They are terminal end points on the cell walls of keratinocytes.
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