INTEGUMETARY Flashcards
Structure of skin
Epidermis
Basement membrane
Dermis
Subcutaneous fat
Epidermis (5)
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale
Dermis (5)
Collagen fibers & elastic fibers
Extracellular matrix
Blood vessels
Nerves
smooth muscles
Skin appendages (5)
Hair follicles
Sebaceous glands
Arrector pili
Eccrine & apocrine
Nail
Deals with the disorders of the skin etc.
3 structure
Dermatology
Epidermis
Dermis
Hypodermis
Function of integumentary (7)
- Protection
- Sensation
- Permits movement and growth
- Endocrine - Vitamin D production
- Excretion - Regulation of sweat
- Immunity - First line of defense
- Temperature regulation
Cutaneous membrane
2 main layer
Entirely stratified squamous epithelium
Skin
Classified as a membrane
Epi & dermi
Epidermis
Outer layer harden __
Keratinization
Outermost layer (dead)
On soles & palms
3-5 layers
Many layers
Deepest layer
S corneum
S lucidum
S granulosum
S spinosum
S basale
Thin clear amorphous space
Electron-dense area
Anchors epidermis
Lamina lucida
Lamina densa
Anchoring fibrils
Skin cancers
Squamous cell carcinoma
Basal cell carcinoma
Malignant melanoma
2 layers
As proteins up into the epi
Denser, deeper, main area
Dermis
Paillary area
Reticular area
Dermis cell
Histocyte
Fibroblast
Mast cell
Present everywhere except vermilion border
Present in axillae
Eccrine
Apocrine
Attached o hair follicles
__ cleavage lines
Sebaceous glands
Langer’s