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Functions of Skin

Protect, cover body, collect info, temperature, heat maintenence

Primary Skin Lesion

arise from previous normal skin

Types of Flat Primary

macule, fissure

Macule

darkened area 1 cm diameter

Fissure

patch, discolored, greater than 1 cm

Types of Elevated primary

papule, plaque, nodule, tumor, wheal

Papule

solid mass up to .5 cm in diameter

Plaque

solid mass surface skin, greater than 1 cm

Nodule

above/underneath skin surface

Tumor

solid 1-2 cm

Wheal

localized swelling, hive

Types elevated by fluid

vesicle, bulla, pustule

Vesicle

blister, .5cm, fluid filled sac

Bulla

larger blister, larger than .5 cm

Pustule

pus filled sac

Secondary lesion

changes/loss of skin from primary, loss of surface

Types of Secondary Lesions

erosion, ulcer

Erosion

loss of epidermis, no bleeding

ulcer

open sore, can bleed/scar maybe infection, deeper

Types with material on skin

scale, crust, keloid, cicatrix

Scale

flake off epidermis

Crust

dry, rediue of pus/blood

keloid

abnormal thick scar tissue

cicatrix

scar

Burns

1,2,3

1st degree burns

red/sore

2nd degree

blisters

3rd degree

deep into full skin/muscle

Laceration

deeper cut, jagged edge

Incision

straight edge, deep

Avulsion

complete chunk of skin removal

Puncture

poke, limited bleeding

Contusion

bruises

Abraision

epidermis, strawberry

Cellulitis

inflammation of cells

Contact Dermititis

allergy reaction

Cyamosis

decreased O2 levels

Dermitits

inflammation of skin

Necrosis

cell/tissue death

Folliculitis

inflammation of hair follicle

Circulatory System

heart/blood vessels, cardiovascular

Functions of Circulatory System

blood/O2 to tissues, immune, transport waste

Lymphatic System

house keeper

Lymph Nodes

small bodies located in body, filter lymph, keep bacteria/bad out

Lymphatic Vessels

bring lymph to body

Spleen

filters, blood resevoir

Thymus

between sternum and lungs, develops immune system

Blood

55% plasma, 45% formed elements, 8% body weight

Pericardium

sac enclosing heart

Epicardium

innermost layer of heart

Endocardium

inside lining

Myocardium

heart muscle

Coronary Arteries

give heart blood supply

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