Layers of the Epidermis Flashcards
what is the first layer of the epidermis?
stratum corneum
what substance is found in the stratum corneum?
keratin
what is the function of keratin?
protection and water resistance
what cells make keratin?
keratinocytes
what is the second layer of the epidermis?
stratum lucidum
what type of skin is the stratum lucidum found in?
thick skin
what is the third layer of the epidermis?
stratum granulum
what causes the appearance of the stratum grandulum
deposits of keratin
what is the fourth layer of the epidermis?
stratum spinosum
what type of cells are found in the stratum spinosum
dendritic cells
what is the function of dendritic cells?
to capture pathogens through phagocytosis
what is the fifth layer of the epidermis?
stratum basale
what types of cells are in the stratum basale?
stem cells, melanocytes, and tactile cells
what is the function of stem cells?
they can differentiate into new cell types
what is the function of melanocytes?
produce melanin