Thick skinThin skin楊州大学YANGZHOUUNIVERSITY
Thick skin Thin skin
a. stratum basale---structure:LM:-a layer of cuboidal orlow columnar cellwith a large pale N-basophilic cytoplasmstratumbasalecells杨州大学YANGZHOUUNIVERSITY
a. stratum basale -structure: LM: -a layer of cuboidal or low columnar cell with a large pale N -basophilic cytoplasm stratum basale cells
a. Stratum basale---structure:EM:-free ribosome-keratin:filament-tonofilament-desmosomestratum-function:mitoticbasaleandactivitycellsproliferation杨州大学YANGZHOUUNIVERSITY
a. Stratum basale -structure: EM : -free ribosome -keratin: filament - tonofilament -desmosome -function: mitotic activity and proliferation stratum basale cells
stratum basalecells杨州大学YANGZHOUUNIVERSITY
stratum basale cells
b.Stratum spinosum---structure:LM: -4-10 layers polygonal cell with large roundnucleus-spinousprocesses-slightbasophiliccytoplasmEM: -tonofibrils-lamellated granules:/100-300nmmembrane-coated/contain phospholipid and steroid-intercellular bridges-Desmosome楊州大学YANGZHOUUNIVERSITY
b. Stratum spinosum -structure: LM: -4-10 layers polygonal cell with large round nucleus -spinous processes -slight basophilic cytoplasm EM: -tonofibrils -lamellated granules: /100-300nm membrane-coated /contain phospholipid and steroid -intercellular bridges- Desmosome