Unit 1

ch. 1, 2 and 3

dors/o

back

mono, uni

one

\-megaly

enlargement

\-meter

instrument for measuring

word building

\-root linking suffix begins with a vowel

\-combining form links a suffix begins with a

vowel

\-combining form links root to another compound word even if it begins with a vowl

combining form does what?

link suffix beginning with a consonant and links root to another compound word even if it begins with a vowel

blackhead

comedos

dermatology

medical speciality involivng diagnosis and treament of diseases having to do with skin and understanding how skin lesions relate to systemic diseases

dermatologist

physician specializing in diagnosis and treatment of skin diseases

integumentary system

consists of skin and its accessory organs: hair, nails, sebaceous glands and sweat glands.

skin

the largest organ in the body providing protection from external environment also shields infection, dehydration, UV rays and toxic compounds

adip/o

fat

lip/o

fat

\-cele

hernia, swelling

\-cyte

cell

steat/o

fat

\-itis

inflammation

cutane/o

skin

dermat/o

skin

derm/o

skin

\-ous

pertaining to

\-logist

specialist in the study of

hypo-

under, below, deficient

\-ic

pertaining to

hidr/o

sweat

sudor/o

sweat

aden

gland

esis

condition

ichthy/o

dry, scaly

osis

abnormal condition; increase (used primarly with blood cells)

kerat/o

horny tissue, hard cornea

melan/o

black

myc/o

fungus

\-oma

tumor

onych/o

nail

pil/o

hair

\-malacia

softening

nid

nest

al

pertaining to

trich/o

hair

pathy

disease

sclero/o

hardening, sclera (white of eye)

seb/o

sebum, sebaceous

squam/o

scale

xer/o

dry

py/o

pus

\-oid

resembling

\-phoresis

carrying, transmission

dia

through, across

\-plasty

surgical repair

\-therapy

treatment

cry/o

cold

\-ectomy

surgical repair

layers of skin

epidermis and dermis

epidermis

\-does not have blood/nerve supply

\-made up of several layers

what are the most important layers that make up the epidermis

stratum corneum and basal layer

stratum corneum

made up of dead fat cells; thickness related to normal wear of area it covers

basal layer

made up of living cells; new cells continously reproduce

direction of new cells in epidermal layer

basal layer to stratum corneum

what do cells get filled up with as they die

keratin; waterproof characteristic prevents body fluids from evaporating and moisture from enterning the body

dermis

\-has nerve and blood vessels

\-oxygen and nutrients flow out of the capillaries in dermis as they pass through tissue fluid giving nourishment to epidermis deep layers

sebaceous glands secrete what

sebum which is an oily material that can cause blackheads or comedos

what do bacteria feed on releasing irritating substance causing inflammation; also what do they form

sebum; whiteheads

whiteheads

pustules

sudiferous

sweat glands

hidr/o

sweat

where is each nail formed?

nail root

nails made up of what

keratin

the nail grows from a matrix of active cells which is beneath what

the cuticle which it stays attached and slides forward over epithelial layer called nail bed

albin/o

white

cyan/o

blue

erthyr/o

red

leuk/o

white

melan/o

black

xanth/o

yellow

carcin/o

cancer

basal cell carcinoma at what layer

basal cell layer; deepest layer of epidermis

2 types of squamous cell carcinoma

in situ and invasive

in situ

those confined to original site

invasive

those penetrating surrounding tissue

sarc/o

flesh (connective tissue)

what fatal tumor associated with aids

kaposi’s sacroma

necr/o

death

AIDS

acquired immune defiency syndrome

BCC

basal cell carcinoma

Bx, bx

biopsy

derm

dermatology

Dx

diagnosis

FH

family history

I and D

incision and drainage

PE

physical examination

abrasion

scrapping or rubbing away of a surface such as skin by friction

abscess

localized collection of pus at site of infection

furuncle

abscess that originate in a hair follicle

carbuncle

cluster of furuncles in the subcutaneous tissue

acne

inflammatory disease of sebaceous follicles of skin marked by blackheads, papules and pustules

alopecia

absence orloss of hear especially on head

cyst

closed sac or pouch in or under the skin with definite wall containing fluid, semifluid or solid material

eczema

redness of the skin caused by capillaries swelling

hemorrhage

loss of large amount of blood in short period,externally or internally