Quiz 1/Exam 1 Flashcards
(224 cards)
what happens to the subcutaneous layer as we age
As we age we lose the subcut layer, vascular supply is less and there is less nerve endings (skin thins – bc of less nerve endings and elderly person may not feel a wound)
Less protection from cold bc of subcut layer dim as we age
what % of our body is skin
15-20
functions of skin
Protection from injury or invasion
Insulation
Maintenance of homeostasis (sweating)
Assist in metabolism (Vit D production, aids in waste removal of urea and other waste products)
Attachment of muscles (ex. erector pili and frontalis)
Cutaneous sensation
a flat, circumscribed area that is a change in the color of skin, less than 1 cm in diameter
Examples: freckles, mole/moles (nevus/nevi), measles
macule
a flat macule that is greater than 1cm
patch
port wine stain is a
patch
an elevated mole or a wart is a
papule
an elevated, firm, area less than 1 cm in diameter
papule
an elevated, firm, rough lesion with a flat top surface greater than 1 cm in diameter
plaque
elevated, irregular-shaped area of cutaneous edema; solid, transient; variable diameter
Examples: insect bite, allergic reaction
wheal
elevated, firm, circumscribed lesion, deeper in dermis than papule; 1-2 cm
Example: lipoma
nodule
elevated, circumscribed, superficial, not into dermis, filled with serous fluid; less than 1 cm in diameter (varicella - chicken pox)
vessicle
vesicle greater than 1 cm in diameter (blister),
bulla
bursting of a bulla
erosion
elevated, superficial lesion; similar to a vesicle but filled with purulent fluid
Example: acne
pustule
elevated, circumscribed, encapsulated lesion; in dermis or subcutaneous layer; filled with liquid or semisolid material
cyst
Rough, thickened epidermis secondary to persistent rubbing, itching, or skin irritation; often involves flexor surface of the extremity
Example: chronic dermatitis (skin inflammation)
lichenefication (atopic dermatitis also is on flexor surfaces)
spider veins are aka
Telangiectasi
spider veins can be indicative of
liver disease
enlarging scar; grows beyond the boundaries of the wound, usually elevated; caused by excessive collagen formation
keloid
elevated, solid lesion; may be clearly demarcated; deeper in dermis; greater than 2 cm in diameter
tumor
nevi/nevus is associated with what term
macule
Cspine, Tspine, or shoulder px could be
cardio, pulmonary or GI condition
inconsistant px sx could be
Psychological, Endocrine, Neurologic, Rheumatic disorders, Adverse Drug Reactions