Integumentary System Health Challenges WK2 L1 Flashcards
what ate the types of cellular injury?
physical
chemical
environmental
what are types of physical agents that cause cell injury?
radiation, uv radiation, trauma, pressure, and blunt force penetration
what are types of chemical agents that cause cell injury?
acids, industrial agents, plant toxins
what are types of environmental agents that cause cell injury?
heat, cold, dryness, wetness
what are the categories of pathophysiology for ingumentary system?
neoplasia and cancers
inflamatory conditions
traumatic conditions
vascular disorders
what is a skin lesion?
pathological or traumatic breach of the normal skin
what is a primary skin lesion?
develops as direct result of disease process and appear as original lesions for disease process
what is a secondary skin lesion?
evolve from primary lesion, may develop from origional lesion over time
what is morphology?
describes form structure and physical appearance of lesion
what are types of primary lesions?
macules papules patches plaques wheals nodules tumour vessicles bula pustule cyst telangiectasia
describe macules
flat circumscribed area that is a change in skin colour
less than 1cm in diameter
describe papules
elevated circumscribed area
less than 1cm in diameter
describe patches
flat non palpable irregular shaped maccule
more than 1cm in diameter
describe plaques
elevated firm and rough lesion with flat top surface
greater than 1cm in diameter
describe wheals
elevated irregular shaped area of cutaneous odemea
solid, transient, variable diameter
describe nodules
elevated firm circumscribed lesion
deeper in dermis and papule
1-2cm in diameter
describe tumour
elevated solid lesion
may be clear demarcated and deeper in dermis
greater than 1-2 cm
describe vesicle
elevated, circumscribed, superficial
does not extend into dermis
filled with serous fluid
less than 1cm in diameter
describe bula
vesicle greater than 1cm
describe pustule
elevated superficial lesion similar to vesicle
instead filled with purulent fluid
describe cyst
elevated, circumscribed, encapsulated lesion
in dermis or subcutaneious layers
filled with liquid or semisolid materials
describe telangiectasia
fine irregular red lines
produced by capillary dialation
what are types of secondary lesions?
scale lichinifecation keloid scar excoriation fissure erosion ulcer atrophy
describe scale
healed up keratanised cells
flaky skin, irregular shape
thick or thin, dry or oily
variation is size
describe lichinifecation
rough thickened epidermis
secondary to persistent rubbing ithing or skin irritation
often involves flexor surface or extremities
describe keloid
irregular shape, elevated, progressivley enlarges scar
grows beyond boundaries of wounds
caused by excessive collage fomartion during healing
describe scar
thin to thick fobrous tissue
replaces normal skin following injury or laceration to dermis
describe excoriation
loss of epidermis
linear, hollowed out
crusted area
decscribe fissure
linear crack r break from epidermis to dermis
may be moist or dry
decscribe erosion
loss of part of epidermis
depressed, moist, glisteming
follows rupture of vessicle or bula
describe ulcer
loss of epidermis and dermis
concave
varies in size
describe atrophy
thinning of skin and surface and loss of skin markings
what does neoplasian / neoplasam mean?
new formation
abnormal growth of cells
what are malignant tumours
grow rapidly
look different to surrounding cells (anaplatic)
lack organisation
spread and invade other tissues and structures (metastasis)
what is benine tumour?
low growing
cells look similar
dont invade and dont metastisise
