<Tr> <Th> FMA </Th> <Td> 67415 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> Hemidesmosomes (HD) are very small stud - or rivet - like structures on the inner basal surface of keratinocytes in the epidermis of skin . They are similar in form to desmosomes when visualized by electron microscopy . While desmosomes link two cells together, hemidesmosomes attach one cell to the extracellular matrix . Instead of desmogleins, hemidesmosomes use integrins . Hemidesmosomes are asymmetrical and are found in epithelial cells connecting the basal face of the cell to basal lamina . </P> <P> The HD comprises two rivet - like plaques (the inner and outer plaques). Together with the anchoring fibrils and anchoring filaments, these are collectively termed the HD - stable adhesion complex or HD - anchoring filament complex . Together, the HD - anchoring filament complex forms a continuous structural link between the basal keratinocyte keratin intermediate filaments and the underlying basement membrane zone (BMZ) and dermal components . Over the past decade, these structures have been shown to comprise a variety of some 10 or more molecular components . </P>

Where are hemidesmosomes commonly found and what is their function
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