Term
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Definition
enclosing barrier
environmental protection
allows motion
produces adnexal structures
temperature regulation
storage of water, electrolytes, vitamins, fats, carbs, protein
pigmentation
immunosurveillance
antimicrobial
sensory perception
secretion/excretion
vitamin D production |
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Term
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Definition
pH gradient exists
upper stratum corneaum 7.0
upper granular layer 7.5
due to filaggrin breakdown products, amino acids, fatty acids, alpha hydroxy acids |
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Term
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Definition
alkalinization factors include CO2 and bicarbonate from sweat
excitement can increase pH |
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Term
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Definition
| relatively alkaline pH of dog skin thought to play a role in susceptibility of dogs to skin infections |
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Term
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Definition
(outside to inside)
stratum corneum
stratum lucidum (only on foot pads)
stratum granulosum
stratum spinosum
stratum basale |
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Term
| Dermal Layers of the Skin |
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Definition
made of fibers, ground substance, fibroblasts, mast cells, histiocytes
glands of the skin, claws, hair |
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Term
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Definition
| forehead, dorsal neck, dorsal trunk, rump, tail base |
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Term
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Definition
| pinnae, axillary region, inguinal region, perianal region |
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Term
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Definition
originate from neural crest
located in stratum basale and spread tentacles into outer layers of the skin
one for every 10-20 kertinocytes
coloration, photoprotection, scavenging cytotoxical radicals, inflammation
constituative pigmentation determined by genetics
facultative pigmenttion determined by stimuli |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| white hairs at the tip, brown/black shaft, and yellow or red brown base |
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Term
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Definition
UV light activates tyrosinase
Tyrosinase turns tyrosine into melanin |
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Term
|
Definition
sebaceous and sweat glands
arrector pili muscle |
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Term
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Definition
only have sebaceous gland
emerge through same pore |
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Term
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Definition
anagen: growth phase
catagen: transition phase
telogen: resting phase |
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Term
|
Definition
provide significant diagnostic information
develop as a result of underlying disease |
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Term
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Definition
primary lesion
small changes in coloration
less than 1 cm in diameter
hyperpigmentation or red or loss of pigmentation |
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Term
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Definition
primary lesion
changes in coloration larger than 1 cm in diameter |
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Term
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Definition
primary lesion
flat topped circular raise area of skin
associated with allergic reactions |
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Term
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Definition
primary lesion
larger areas of subcutaneous edema
associated with allergic reactions |
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Term
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Definition
primary lesion
small red raised lesion
associated with early inflammatory stage or allergic reaction
bites or developing pustule |
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Term
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Definition
primary lesion
associated with bacterial infection
or immune mediated diseases
located within stratum corneum within epidermis
accumulation of neutrophils or eosinophils |
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Term
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Definition
primary lesion
located within epidermis
arge fluid filled structure
vesicle is small blister less than 1 cm
bulla is larger than 1 cm
associated with viral and immune mediated diseses |
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Term
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Definition
primary lesion
localized circumscribed area
associated with infiltration of cells in epidermis
large and hard
neoplastic or inflammatory cells |
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Term
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Definition
primary lesion
neoplastic cells that obliterate normal structure of skin |
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Term
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Definition
| may develop from primary lesion or result from self-trauma |
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Term
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Definition
secondary lesion
loss of hair |
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Term
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Definition
secondary lesion
dandruff
accumulation of stratum corneum on skin surface
dry skin, scratching, infection |
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Term
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Definition
secondary lesion
circular scales
footprint of ruptured vesicle or pustule |
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Term
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Definition
secondary lesion
accumulation of exfoliated stratum corneum cells and inflammatory cells |
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Term
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Definition
secondary lesion
draining tracts associated with deeper skin infections into the dermis
associated with ruptured hair follicles |
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Term
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Definition
secondary lesion
neutrophils and macrophages
penetrating injury |
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Term
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Definition
secondary lesion
post inflammatory
associated with erythema |
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Term
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Definition
secondary lesion
scratches
caused by the animal
usually jsut on epidermis |
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Term
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Definition
secondary lesion
goes through epidermis and dermis |
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Term
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Definition
secondary lesion
erosion are superficial
ulcer is loss of epidermis and dermis |
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Term
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Definition
secondary lesion
skin is healed with fibrous connective tisuse
epidermis is not regenerated |
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Term
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Definition
secondary lesion
whole epidermis is thicker than normal
hyperplasia of those upper laters
exaggerated skin markings
stratum spinosum, basal, corneum are thick |
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Term
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Definition
secondary lesion
thickening of just stratum corneum |
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Term
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Definition
secondary lesion
sloughing of dead tissue |
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Term
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Definition
secondary lesion
hair follicle that has lost hair shaft and is plugged with secretions and exfoliated skin |
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