MedTerm - module 4 Flashcards Preview

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Flashcards in MedTerm - module 4 Deck (163):
1

integumentary system

skin and accessory organs - hair, nails, glands

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epidermis

thin outer, avascular layer

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dermis

deeper, dense layer of connective tissue. contains blood vessels, nerves, lymphatic vessels, muscle fibers, hair follicles, and sweat and sebaceous gland

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epi-

on, upon, or over

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subcutaneous

a spongy, porous layer with a rich blood supply and a wealth of fat-producing cells

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sub-

under

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cutane/o

skin

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-ous

pertaining to

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cutane/o, derm/o, dermat/o

skin

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dermatology

study of the skin

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dermatologist

specialist of the skin

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hyperdermic

below the dermis

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epidermal

something is on or over the skin

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intra-

within

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intradermal

within the skin

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per-

through

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percutaneous

a drug or disease agent delivered or spreading though the skin

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transdermal

administration of an agent or drug through the skin

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keratin

hard, water repellent protein

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keratinized cells

horny cells

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kerat/o

horny tissue, or hard

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keratogenic

condition originating in horny tissue

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melanocytes

specialized cells distributed throughout the basal layer of the epidermis that contains black pigment melanin

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melanin

black pigment

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subcutaneus tissue anchors the dermis and the epidermis to the

underlying muscle and bone

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lipocytes

fat cells

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hair

outgrowth of flexible, keratinized fibers from the skin

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tich/o

hair

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lunula

site of nail growth

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onych/o, ungu/o

nail

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ungual

pertaining to the nails

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sebaceous glands secrete

sebum

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sebum

oily substance that helps to lubricate the skin and hair

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seb/o

sebum

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perspiration from? helps?

produced by the sweat gland and helps to regulate body temp through evaporation

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hidr/o

sweat

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contact dermatitis

allergic reaction that can lead to an acute or chronic inflammation of the skin

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lesion

any visible change in body tissue cause by injury or disease; sores, wounds, ulcers and tumors

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primary lesion

arise from normal skin as a result of an injury or pathologic process

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secondary lesion

erosion

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papule

small, solid, raised skin lesion that is less than 1cm in diameter

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nodule

larger papule, small, palpable knot-like mass

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vesicles

tiny blisters; primary lesion. small, circumcised elevation on the skin that contains serous fluid

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pruritus

itching

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bulla

vesicle larger than 1cm in diameter

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dermatitis

inflammation of the skin

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eczema

inflammatory condition of the skin. breakdown of the epidermis

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pustule

small, elevated, superficial lesion. contain pus. result of infection and inflammation of a hair follicle or sweat pore

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pus

purulent material

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macule

flat, circumscribed area or discoloration on the surface of the skin. freckles and flat moles

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wheal

irregularly shaped, solid elevation of the skin. red or pale.

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allergen

a substance to which a person develops a hypersensitivity

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allergy

hypersensitivity to a substance

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fissure

crack-like lesion of the skin

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petechia

reddish-purplish pinpoint spot that appears on the skin as a result of intradermal hemorrhaging caused by injury, inflammatiion or the spontaneous leakage of blood from fragile vessel walls

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ecchymosis

small, flat, purple, or blue discoloration

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purpura

group of bleeding disorders and to the lesion that develop

58

erythroderma

abnormally red skin

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erythema

red skin

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xanthoderma/jaundice

yellow skin

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leukodermal/vitiligo

white skin

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albin/o

white

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albinism

inherited deficiency or absence of pigment in the skin, hair and eyes caused by an abnormality in melanin production

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pallor

temporary paleness

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alopecia

absence or loss of hair from areas where it normally grows, especially from the scalp

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urticaria

eruption of edematous wheals with pruritus as a prominent symptom

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edema

puffy swelling from fluid accumulation

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ulcer

crater-like sore that results from deterioration infection, or a malignancy

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pressure ulcer/ decubitus ulcer

bed sore

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cellulitus

infectious disorder that leads to redness, swelling and fever

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hidradenitis

inflammation of the sweat glands

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acne

a skin disorder seen in 80% of adolescents. obstruction of pores

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comedone

inflamed sebum plug

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abscess

localized collection of pus, beginning similarly to a blocked comedone forms an abscess

75

rosacea

chronic inflammatory disorder that also produces erythema, papules, pustules and broken blood vessels. usually on the face

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herpes xoster

painful inflammed blisters. most common viruses

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cytomegalovirus (CMV)

herpes type virus that usually crops up when the immune system is compromised

78

tinea

ring worm

79

impetigo

inflammatory, purulent and contagios infection caused by staphylococci and staphylococcus

80

staphyl/p

grapelike clusters

81

-coccus

berry-shaped

82

strept/o

twisted chain

83

macules

small, flat discolorations

84

carbuncle

cluster of boils

85

MRSA infection

invasion by methicillin-resistant staphylococcus aureus. resistant to antibiotics

86

dermat/o

skin

87

coni/o

dust

88

-osis

condition

89

dermatoconiosis

skin condition caused by dust

90

xeroderma

dry skin

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xer/o

dry

92

seborrhea

excessive discharge of sebum

93

-rrhea

flow or discharge

94

diaphoresis

excessive sweating

95

onychomycosis

abnormal condition of fungus in the nails that is seen more and more with use of artificial nails

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myc/o

fungus

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trichomycosis

abnormal fungal condition of the hair

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onychomalacia

softening of the nail

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-malacia

softening

100

onychocryptosis

abnormal condition of the hidden nails

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crypt/o

hidden

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paronychia

diseased state around the nail, particularly in the soft tissue that surround the nail border

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para-

beside

104

-ia

abnormal condition or diseased state

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candidiasis

fungal infection. caused by a yeast-like fungus and can infect the skin, mouth or vagina

106

scabies

contagious dermatitis caused by the scabies itch mites penetration into the stratum corneum. papular itch rash

107

pediculosis

an invasion into the skin and hair by lice

108

necrosis

tissue death

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necr/o

death

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gangrene

bacterial invasion and the subsequent decomposition of necrotic tissue

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psoriasis

chronic inflammatory skin disorder in which thick, scaly lesions form because of an excessive epithelial growth rate

112

pachyderma

thickening of the skin

113

pachy-

thick or heavy

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scleroderma

hardening of the skin

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scler/o

hard

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Systemic lupus erythematosus

chronic inflammatory disease of the connective tissue. butterfly rash

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first degree burn (sunburn)

epidermis only

118

second degree burn (partial thickness)

epidermis and dermis

119

third degree burn (full thickness)

all layers injured

120

neoplasms

abnormal growths

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actinic keratosis

precancerous lesion, caused by excessive sun exposure

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corn

smooth, thick mass that develops from the epidermis of the feet and toes. caused by constant friction and pressure

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callus

grow on the weight bearing areas of the feet and on the palmar surface of the hands

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verruca/warts

benign tumor of the epidermal layer of the skin. circumscribed, elevated, firm papule caused by a papillomavirus

125

keloid

lesion that arises from an overgrowth of collagenous scar tissue at the site of a wound

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cicatrix

scar tissue that develops during the process of normal healing

127

leukoplakia

type of lesion that has a tendency to become cancerous. thick, white patches on the tongue

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nevus

mole, circumscribed malformation of the skin. usually brown, black, or flesh colored

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congenital nevus

present at birth. birthmark

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dysplastic

potentially cancerous. any change in color, size or texture

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melanoma

tumor originates in the skin and is composed of melanocytes

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melanocytes

cells that produce the pigment melanin

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kaposi sarcoma

formerly rare cutaneous malignancy that is now frequently seen in association of AIDS

134

AIDS

characterized by reddish-purple or brown papules that initially appear on the lower extremities and gradually spread to the upper body, metastasizing to the lymph nodes and organs

135

squamous cell carcinoma

cutanwou malignancy that arises from the squamous epithelial cells of the epidermis

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basal cell carcinoma

fair skinned people. basal cell layer of the epidermis and are usually reddish, hard, elevated lesions

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aspiration biopsy

suctioning tissue from a fluid filled lesion through a fine needle into a syringe

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needle biopsy

removing living skin cells by rotating a hollow needle within underlying cellular layers

139

punch biopsy

remove the core of the abnormal tissue when excision of the entire lesion is not possible

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shave biopsy

incising the lesion with a cut that is parallel to the skin

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abrasion

scraping away of skin

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dermabrasion

surgical procedure for removing scars

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chemabrasion

chemical abrasion, application of chemicals that remove surface layers of skin cells

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cryosurgery

application of subfreezing liquid nitrogen to destroy the lesion

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cry/o

cold

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cautery

destruction of tissue with hot or cold

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cauter/o

heat or burn

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onychectomy

excision of the nail or part of the nail

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-ectomy

excision or surgical removal

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debridement

removal of damaged tissue and depris

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dermatoplasty

surgical repair of the skin

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-plasty

surgical repair

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dermatoautoplasty

use of patients owns skin to repair

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autograft

self

155

dermatoheteroplasty

uses skin from others

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heter/o

other

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allograft

using skin from another for a skin craft

158

rhytidectomy

excision of wrinkles

159

rhytid/o

wrinkles

160

rhytidoplasty

surgical repair of wrinkles

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dermatome

instrument used to cut the skin

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-tome

cutting instrument

163

Mohs Surgery

a microscopically controlled excision of the malignancy