Chpt. 5: Integumentary System
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11 Terms
function of integumentary system
protection, UV radiation, dehydration
vitamin D/calcium production & absorption
sensory organ
thermoregulation
identify and describe functions
hair follicle
identify and describe functions
sebaceous gland: lubricate/protect, holocrine
identify and describe functions
arrector pilli: contract, straighten hair, goosebumps
identify and describe functions
sweat gland: watery sweat, eccrine/apocrine
identify and describe functions
nerve plexus
layers of skin
epidermis
dermis
hypodermis/subcutaneous tissue
layers of epidermis (stratum)
corneum
lucidum
granulosum (keratinocytes)
spinosum (dendritic cells, desmosomes)
basale (stem cell mitosis, melanocytes)
layers of dermis
papillary dermis: areolar tissue
reticular dermis: dense irregular
other layers of skin
dermal papillae: increase surface area, efficiency for delivery
vascular plexus
hypodermis: not skin
pathology of skin (injuries)
blister: in between epi/dermis
scar: dermis through epi, tissue loses function
skin cancer: carcinoma, melanoma