skin

skin

Epidermis

outermost, thin cellular membrane

Dermis

middle layer, dense fibrous, connective tissue

Subcutaneous tissue

thick, fat-containing tissue

Hair

cells filled with the hard protein (keratin)

Hair follicles

shafts that hold the hair

Nails

hard keratin plates covering the toes and fingers

Glands

sebaceous and sweat

Sebaceous glands

secrete oily sebum into the hair follicle to lubricate, subject to bacterial growth

Sweat glands

secrete into pores to moisten and cool, subject to bacterial growth

basal layer

Deepest region of the epidermis, gives rise to all the epidermal cells

collagen

Structural protein found in the skin and connective tissue

cuticle

Band of epidermis at the base and sides of the nail plate

eccrine sweat gland

Most numerous sweat-producing exocrine gland in skin

epithelium

Layer of skin cells forming the outer and inner surfaces of the body

hair follicle

sac where hair grows

integumentary system

The skin and its accessory structures such as hair and nails

lunula

Half-moon-shaped, whitish area at the base of a nail

paronychium

Soft tissue surrounding the nail border

squamous epithelium

Flat, scale-like cells composing the epidermis

stratified

arranged in layers

stratum (plural - strata)

A layer (of cells)

stratum corneum

Outermost layer of the epidermis consists of flattened, keratinized cells

adip/o

fat

albin/o

white

caus/o

burn, burning

cauter/o

heat, burn

cutane/o

skin

derm/o

skin

dermat/o

skin

diaphor/o

profuse sweating

erythem/o

redness

erythemat/o

redness

hidr/o

sweat

ichthy/o

scaly, dry

kerat/o

hard, horny tissue

leuk/o

white

lip/o

fat

melan/o

black

myc/o

fungus

onych/o

nail

phyt/o

plant

pil/o

hair, hair follicle

py/o

pus

rhythid/o

wrinkle

seb/o

sebum

squam/o

scale-like

steat/o

fat

trich/o

hair

ungu/o

nail

xanth/o

yellow

xer/o

dry

anthrac/o

black

chlor/o

green

cirrh/o

tawny yellow

cyan/o

blue

eosin/o

rosy

jaund/o

yellow

lute/o

yellow

melan/o

black

poli/o

gray

pustul

pus-filled

whea

clear fluid, blister

cys

fluid or semisolid thick-walled filled sac

vesicl

clear fluid, blister

crust (scab)

dried serum and cellular debris

poly

benign growth extending from mucous membrane surface

macul

discolored, flat

erosio

wearing away, loss of epidermis

nodul

solid, elevated mass, more than 1 cm

fissur

slit, groove

ulce

open sore on skin or mucous membrane

papul

small, solid elevation, pimple or plaque

Ecchymosis

blue-black marks on the skin, bruise

Petechia

small pinpoint hemorrhage

Urticaria

an acute allergic reaction with red, round wheals on the skin (hives)

Acne

papular and pustular eruption of skin with increased production of sebum

Cellulitis

a diffuse acute infection of the skin

Eczema (atopic dermatitis)

inflammation of the skin with erythematous and papulovesicular lesions caused by allergy

Exanthematous viral diseases

a rash due to virus (for example, rubella)

Gangrene

the death of tissue with loss of blood supply

Impetigo

contagious pyoderma caused by staph or strep

Psoriasis

chronic recurrent dermatosis with silver gray scales that itch

Scabies

parasitic (tiny mites) and infectious pruritus

Scleroderma

chronic and progressive disease of the skin with hardening of connective tissue

Systemic lupus erythematosus (SLE)

an inflammatory disease of collagen in the skin, joints, and internal organs

Urticaria (hives)

an acute allergic reaction in which red, round wheals develop on the skin

Tinea

infection of the skin caused by a fungus

Keratosis

thickened area of epidermis

Leukoplakia

white, thickened patches on tongue or cheek

Nevus (pl. nevi)

pigmented lesion

Verruca

warts caused by virus

-plakia

plaque