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The protective covering (Skin lesions (macule (discolored spots on skin),…
The protective covering
integumentary system
skin, hair, nails, and associated glands
function
protection from pathogen
balance fluid levels
stores fat for energy
produces vit D
sensory input regulate body temp
Skin
largest organ
weighs 20 pounds 20.83 sq ft
three layers
Dermis
thickets layer
capillaries
blushing
collagenous elastic fibers
prevent tearng
skin to return to shape
wrinkles
involuntary muscle
nerve ending
sense what is happening in enviroment
lymph vessels
hair follicles
sweat glands
dont smell bacteria produces smell
oil glands
small fingers anchor epidermis
Epidermis
outside skin
no blood vessles or nerve ends called auscular
constantly shedding pound and a half a year
basal layer cells are born
outer most layer cells die stratem layer
melanocyte
skin color
forms freakles
all people have same number just distrubuted and used
skin color
carotene yellow tint
albinism very little pigment
Sudoriferous gland
Apourine sweat gland
secrete follicles
armpits
puberty
groin and anal
sexual attraction
eccring glands
greater numbers
palms
hands
feet
upper lip
forehead
regulate temeperture
Pathology
skin color and disease
yellow jaune liver disease
cant break down bilirubin
Bronze color
aderal gland disease
ecchymosis bruised skin
skin blood or circulatory problems
Pathology
herpes
Herpes varicella
chicken pox
herpes zoster
shingles
herpes simplex 1
cold sore or fever sore
herpes simplex two
genital herpes
Human Papilloma virus
HPV
warts
plantar warts
sole of feet
genital warts
sexually transmitted high contagious
fungal infection
tinea
skin
tineas pedis
foot
athletes foot
tinea cruris
jock itch
groin area
tinea copor
ring worm
tinea unguium
under finger or toe nails
Bacterial infection
cellulitis
skin and subcutaneous tissue
lymes disease
deer tick
how skin heals
blood vessels fills wound with blood
blood clots
blood exposes to air
scab forms natures band aid
inflammtory process kicks in
white blood cells destroy pathogen
fibroblasts pull would edges together
basal layer produces cells for would repair
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Burns
2nd degree
entire depth epidermis and portion of dermis
3rd degree
all three layers of skin
1st degree
burn damage only outer layer or epidermis
4th degree
penetrates all the way to bone
Rule of nine
body devided into regions and gives percentage of body surface area
autographing
using patients own skin to re-graph
Nails
specialized epithelial cells
protein we see
nail body
sterile matrix
helps connect nail body and bed
lunula
moon shaped part of nail
hair
helps regulate body temp and function as sensory information
visible hair
keratin
hair you see
shaft
hair color
more melanin darker color
white hair absence of melanin
red hair iron melanin
flat hair produces curly hair
round hair produces straight hair
alopenia
hair loss
lice
insects on hair and scalp
pediculosis
lice infestation
pubic lice
sexual contact
head
common
body lice
poor personal hygiene
scabies
mites burrow to lay eggs
temperature regulation
integumentary system
vasodilation
heated blood external cooling air
vasoconstriction
keeps cooling blood to minimum
sweat glands
secrete water into skins surface
goosebumps warm skin
Skin lesions
macule
discolored spots on skin
wheal
localized enviroment
pupule
solid devated areas on skin
nudule
larger popule
vesicle
small fluid filled sac
abrasions
loss of skin surface
acne
decurbitus ulcer
bedsorea
boil
bacteria
eczema
genetic presispation
falliculitis
bacteria
hives
allergic reaction
keloid
tissue
malignant melanoma
melanocyte
psoriasis
genetic basis