cells of epidermis Flashcards
4 cells under epidermis
keratinocytes, melanocytes, langerhans cells, & merkel cells
40,000 to 70,000 m.w.
keratinocytes
principal cells
keratinocytes
other term for keratinocytes
Epidermocytes
synthesize keratin
keratinocytes
Synthesis and release of the brown pigment
melanocytes
in melanocytes what is the brown pigment that is released?
melanin
melanocytes are infrequently scattered in this layer
stratum basale
melanocytes contains
tyrosinase
tyrosinase of melanocytes are for?
melanin synthesis
run in spaces
between keratinocytes of stratum spinosum
melanocytes
Macrophage of the skin
langerhans cells
dendric cells
langerhans cells
true or false: langerhans cells are present in some of the layers of epidermis
false (present in all layers of epidermis )
what granule does can langerhans cells be identified
birbeck granules
rod-like with regular cross-
striations, one end distends in a vesicle (tennis racket)
birbeck granules
intercepts microbial invaders in adaptive responses
langerhans cells
Antigen-presenting cells
langerhans cells
this is derived from monocytes
langerhans cells
it represents 2-8% of the cells in the epidermis
langerhans cells
this cells are most clearly seen in spinous layer
langerhans cells
Epithelial tactile cells
Merkel Cells
Low-threshold mechanoreceptors
Merkel Cells
main function of merkel cells
senses (gentle touch)
