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SKIN

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Mind Map on SKIN, created by Francis Osuji on 29/10/2016.
Francis Osuji
Mind Map by Francis Osuji, updated more than 1 year ago
Francis Osuji
Created by Francis Osuji over 8 years ago
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Resource summary

SKIN
  1. Structure
    1. Epidermis
      1. Layers
        1. Stratum corneum
          1. Stratum lucidum
            1. Only present in thick areas of skin
              1. palms / soles of feet
            2. Come Lets Get Sun Baked
              1. Stratum granulosum
                1. Stratum spinosum
                  1. Stratum basale
                  2. Stratified squamous epithelium
                    1. Cell types
                      1. Keratinocytes
                        1. Produce keratin
                          1. waterproofs the skin
                        2. Melanocytes
                          1. Produce pigment
                            1. Same number of cells in everyone
                            2. Langerhans cells
                              1. Dendritic cell, can become APC
                              2. Merkel cellls
                                1. Sensory
                                  1. very sensitive to touch
                                2. Epidermal stem cells
                                  1. in basale layer
                              3. Dermis
                                1. Blood vessels
                                  1. Nerves
                                    1. Layer of connective tissue
                                      1. Hair, nails, sebaceous and sweat glands ORIGINATE here
                                      2. Hypodermis
                                        1. Fat
                                      3. Function
                                        1. Barrier (protection)
                                          1. keratin
                                            1. hydrophobic lipid layer in granulosum
                                              1. cornified layer in corneum
                                              2. Immunity
                                                1. change in pH as you get deeper in layers of corneum (less acidic)
                                                  1. Langerhan cells in spinosum
                                                  2. Sense organs
                                                    1. Thermoreceptors
                                                      1. Meissner's corpuscles
                                                        1. senses touch
                                                          1. situated quite superficial
                                                        2. Nociceptors
                                                          1. Pacinian corpuscles
                                                            1. pressure sensors
                                                              1. situated very deep
                                                          2. Vitamin D production
                                                            1. Beauty, shape
                                                            2. Histology
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