282213
Description
Mind Map by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312
over 10 years ago
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Layers of the Epidermis
- Stratum Corneum (20-25 layers)
- Layers of keratinocytes
- Containment
- Water protection
- 28 day cycle
- 14 to reach SC
- 14 to be shed
- 14 to reach SC
- No nucleus
- Containment
- Squaemous Epithelium
- Layers of keratinocytes
- Stratum Granulosum
- Contains increasingly kertainised cells
- Keratin organises into fibres
- Keratin organises into fibres
- Lamellar granules produce lipid 'glue
- Some undergo apoptosis
- They're too far from a nutrient source
- They're too far from a nutrient source
- Nuclei being to disintegrate
- Contains increasingly kertainised cells
- Stratum Basale
- Basal Cells
- Rapidly dividing
- Keratinocytes
- Rapidly dividing
- Merkel Cell
- Associated with sensory nerves
- Shapes/textures
- Shapes/textures
- Found at bottom of sweat duct
- Associated with sensory nerves
- Melanocytes
- 8-10% of stratum basale
- Produce melanosomes
- Produce melanosomes
- Apoptosis of these cells under UV causes sunburn
- 8-10% of stratum basale
- Basal Cells
- Stratum Spinosum
- Adjacted cells bonded by desmosomes
- Coarser keratin than in the stratum basalum
- Limited ability to divide
- Langerhans Cell
- Presents antigens of taken up microbes
- So T-cells will recognize them
- So T-cells will recognize them
- Presents antigens of taken up microbes
- Adjacted cells bonded by desmosomes
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