Zusammenfassung der Ressource
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