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Keratinocytes
- produce keratin-protein, gives epidermis durability
- most abundant
-
Melanocytes
- produce melanin
- protects against UV damage
-
Langerhans Cells
Phagocytic (immune) cells
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Merkel Cells
sensory nerve endings, form touch receptors
-
Meissner's Corpuscle
- pain receptors
- papillary layer
-
Pacinian Corpuscle
- pressure receptors
- reticular layer
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Layers of Skin: Epidermis
- Stratum Basale- basal layer, bottom (bull)
- Stratum Spinosum- spiny, jagged edges (shit)
- Stratum Granulosum- granulated, (gotta)
- Stratum Lucidum- thick skin (learn)
- Stratum Corneum- apical layer (crap)
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Layers of skin: Dermis
- Papillary layer- superficial, areolar C.T., Meisner's Corpuscles.
- Reticular layer- deep, dense irregular C.T., arteries, veins, glands, Pacinian Corpuscles.
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Hair Follicle
dark area around hair
-
Hair Shaft
part that protrudes from surface
-
Hair bulb
germinal epithelial cells at basal end
-
Arrector pili muscle
- smooth muscle tissue
- connects each follicle to dermis
-
Sebaceous Glands
- Globular structure, no ducts, associated with hair
- secretes Sebum- oil to lubricate skin
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Sweat (sudoriferous) Glands
- Eccrine-dense network, H20 & NaCl
- Apporcine- loose network
-
Synovial Membrane
connective tissue, lining joint cavities
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