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6831466
SKIN
Description
Mind Map on SKIN, created by Francis Osuji on 29/10/2016.
No tags specified
semester 1
unit 1
skin
emergencies
Mind Map by
Francis Osuji
, updated more than 1 year ago
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Created by
Francis Osuji
about 9 years ago
9
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0
Resource summary
SKIN
Structure
Epidermis
Layers
Stratum corneum
Stratum lucidum
Only present in thick areas of skin
palms / soles of feet
Come Lets Get Sun Baked
Stratum granulosum
Stratum spinosum
Stratum basale
Stratified squamous epithelium
Cell types
Keratinocytes
Produce keratin
waterproofs the skin
Melanocytes
Produce pigment
Same number of cells in everyone
Langerhans cells
Dendritic cell, can become APC
Merkel cellls
Sensory
very sensitive to touch
Epidermal stem cells
in basale layer
Dermis
Blood vessels
Nerves
Layer of connective tissue
Hair, nails, sebaceous and sweat glands ORIGINATE here
Hypodermis
Fat
Function
Barrier (protection)
keratin
hydrophobic lipid layer in granulosum
cornified layer in corneum
Immunity
change in pH as you get deeper in layers of corneum (less acidic)
Langerhan cells in spinosum
Sense organs
Thermoreceptors
Meissner's corpuscles
senses touch
situated quite superficial
Nociceptors
Pacinian corpuscles
pressure sensors
situated very deep
Vitamin D production
Beauty, shape
Histology
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