Chapter 3: Integumentary System Flashcards
epidermis
stratum corneum
basal layer
dermis
corium
subcutaneous tissue
binds dermis to underlying structures; stores fat, insulates, cushions
skin accessory organs
sebaceous glands, sudoriferous glands, hair, nails
function of skin
cover and protect body from pathogens and other harm; regulates temperature, pain, pressure; synthesize vitamin D
function of sweat and oil glands
produce secretions
melanocyte function
give color to skin by producing melanin
integument
refers to skin
sensations provided by skin
hot, cold, pressure, touch
cutane/o, dermat/o, derm/o,
skin
adip/o, lip/o, steat/o
fat
hidr/o, sudur/o
sweat
ichthy/o
dry, scaly
cyan/o
blue
melan/o
black
kerat/o
horny tissue, hard, cornea
myc/o
fungus
onych/o
nail
pil/o, trich/o
hair
scler/o
hardening; sclera (eye whites)
seb/o
sebum, sebaceous
squam/o
scale
leuk/o
white
erythr/o
red
-derma
skin
-oid
resembling
-phoresis
carrying, transmission
-plasty
surgical repair
onych/o
nails
metastasis
spread of cancer from one part of the body to another
most common site of basal cell carcinoma
face
benign
non cancerous
basal cell carcinoma
malignancy of basal layer of skin, commonly caused by overexposure to sun
abscess
localized collection of pus at infection site (staphylococcal infection)
furuncle
boil, abscess in hair follicle
carbuncle
cluster of furuncles in the subcutaneous tissue
erythema, erythamatous
reddening of skin
psoriasis
inflammatory chronic skin condition - thick, flaky, red patches of various sizes covered with silvery scales
pruritus
common complaint of psoriasis patients
psoriasis caused by
excessive development of basal layer
PUVA
photochemotherapy - exposure to UVA light to slow hyperkeratosis; UVB to retard cell production
excimer laser
powerful form of UVB light to control scalling and inflammation
common sites of psoriasis
scalp, knees, elbows, umbilicus, genitalia
hyperkeratosis
overgrowth of the horny layer of epidermis
acne vulgaris
inflammatory disease of the sebaceous glands and hair follicles; appearance of papules, pustules, and comedones
cause of acne vulgaris
hormone changes and genetics; stress, irritants
comedones
blackheads and whiteheads
pustules
small, raised lesions containing pus
scabies
contagious parasitic skin infection by itch mite - rash and crawling sensation
pruritus
itching
impetigo
superficial skin infection
location of impetigo lesions
face, trunk, arms; yellow crust
papules
pustules in early stage of impetigo
alopecia
absence of lss of hair
debridement
removal of necrotized tissue by surgical excision, enzymes, chemical agent
ecchymosis
skin discoloration due to hemorrhagi area (bruise)
hematoma
elevated, localized collection of blood trapped under skin
urticaria
allergic reaction of skin by eruption of red elevated patches that are itchy; wheals or hives
vitiligo
localized loss of skin pigmentation characterized by milk-white patches; leukoderma
allergy skin test
allergen applied or injected into skin
biopsy
excision of tissue from body site for microscopic examination
dermatitis
inflammation of skin
dermatome or dermatotome
instrument to cut skin
adipoma, lipoma, streatoma
tumor consisting of fat
onychectomy
excision of removal of nail
cyanoderma
blue skin
dermoplasty
surgical repair of skin
I&D
incision of lesion and drainage of content
Mohs surgery
layers of cancer-containing skin are progressively excised and examined - repeat until only cancer-free tissue remains
allograft
skin graft from one person to another (homograft)
autograft
skin graft from one site on individual to another site on that individual
xenograft
transplantation (dermis) from foreign donor (usually pig) - heterograft
cryosurgery or cryotherapy
using nitrogen to freeze and destroy tissue
antibiotics
destroy bacteria
antifungals
destroy fungi
antipruritics
reduce itching
corticosteroids
anti-inflammatories
