Medical Terminology, Chapter 12, The Integumentary System

170 terms by Lefty66

Create a new folder

Advertisement Upgrade to remove ads

abrasion

an injury in which superficial layers of skin are scraped or rubbed away

abscess

a closed pocket containing pus that is caused by a bacterial infection

acne vulgaris

a chronic inflammatory disease characterized by pustular eruptions of the skin caused by an overproduction of sebum

actinis keratosis

a precancerous skin growth that occurs on sun-damaged skin

adipose tissue

fat

albinism

a genetic condition characterized by a deficiency or the absence of pigment in the skin, hair, and irises of the eyes

alopecia

the partial or complete loss of hair, most commonly on the scalp

alopecia areata

an autoimmune disorder that attacks the hair follicles, causing well-defined bald areas on the scalp or elsewhere on the body

alopecia capitis totalis

an uncommon condition characterized by the loss of all the hair on the scalp

alopecia universalis

the total loss of hair on all parts of the body

anhidrosis

the abnormal condition of lacking sweat in response to heat

arrector pili

tiny muscle fibers attached to the hair follicles that cause the hair to stand erect

basal cell carcinoma

a malignant tumor of the basal cell layer of the epidermis; this is the most common and least harmful type of skin cancer because it is slow growing and rarely spreads to other parts of the body

biopsy

the removal of a small piece of living tissue for examination to confirm or establish a diagnosis

blepharoplasty

the surgical reduction of the upper and lower eyelids by removing excess fat, skin, and muscle

botox

a formulation of botulinum toxin type A; injections that temporarily block the nerve signals to the injected muscle, reduce moderate to severe frown lines for up to 3-4 months

bulla

a large blister that is usually more than 0.5 cm in diameter

burn

an injury to body tissues caused by heat, flame, electricity, sun, chemicals, or radiation

callus

a thickening of part of the skin on the hands or feet caused by repeated rubbing

carbuncle

a cluster of connected furuncles (boils)

cauterization

the destruction of tissue by burning

cellulitis

an acute, rapidly spreading infection within the connective tissues that is characterized by malaise, swelling, warmth, and red streaks

chemabrasion

the use of chemicals to remove the outer layers of skin to treat acne scarring, fine wrinkling, and keratoses

chloasma

a pigmentation disorder characterized by brownish spots on the face

cicatrix

a normal scar resulting from the healing of a wound

clubbing

abnormal curving of the nails that is often accompanied by enlargement of the fingertips

collagen

a tough, yet flexible, fibrous protein material found in the skin and in the bones, cartilage, tendons, and ligaments

collagen replacement therapy

a form of soft-tissue augmentation used to soften facial lines or scars or to make lips appear fuller

comedo

a noninfected lesion formed by the buildup of sebum and keratin in a hair follicle

contact dermatitis (CD)

a localized allergic response caused by contact with an irritant

contusion

an injury to underlying tissues without breaking the skin and is characterized by discoloration and pain

cosmetic surgeon

a physician who specializes in the surgical restoration and reconstruction of body structures

crust

a collection of dried serum and cellular debris; a scab

cryosurgery

the destruction or elimination of abnormal tissue cells through the application of extreme cold by using liquid nitrogen

curettage

the removal of material from the surface by scraping

cutaneous

relating to the skin

cuticle

a narrow band of epidermis attached to the surface of the nail just in front of the root, protecting the new keratin cells as they form

cyst

an abnormal sac containing gas, fluid, or a semisolid material

debridement

the removal of dirt, foreign objects, damaged tissue, and cellular debris from a wound to prevent infection and to promote healing

dermabrasion

a form of abrasion involving the use of a revolving wire brush or sandpaper

dermatitis

an inflammation of the skin

dermatologist

a physician who specializes in diagnosing and treating disorders of the skin

dermatoplasty

the replacement of damaged skin with healthy tissue taken from a donor site on the patient's body

dermatosis

a general term used to denote skin lesions or eruptions of any type that are not associated with inflammation

dermis

the thick layer of living tissue directly below the epidermis

diaphoresis

profuse sweating

dysplastic nevi

atypical moles that may develop into skin cancer

ecchymosis

a large, irregular area of purplish discoloration due to bleeding under the skin; a bruise

eczema

a form of persistent or recurring dermatitis that is usually characterized by redness, itching, and dryness, with possible blistering, cracking, oozing, or bleeding

electrolysis

the use of electric current to destroy hair follicles in order to produce the relatively permanent removal of undesired hair

epidermis

the outermost layer of the skin

epithelial tissues

form a protective covering for all of the internal and external surfaces of the body

erythema

redness of the skin due to capillary dilation

erythroderma

abnormal redness of the entire skin surface

exfoliative cytology

a technique in which cells are scraped from the tissue and examined under a microscope

exfoliative dermatitis

a condition in which there is widespread scaling of the skin, often with pruritus, erythroderma, and hair loss

female pattern baldness

a condition in which the hair thins in the front and on the sides of the scalp and sometimes on the crown

first-degree burn

superficial burn; no blisters, superficial damage to the epidermis

fissure

a groove or crack-like break in the skin

folliculitis

an inflammation of the hair follicles

furuncles

large, tender, swollen areas caused by a staphylococcal infection around hair follicles or sebaceous glands; boils

gangrene

tissue necrosis most commonly caused by a loss of circulation to the affected tissues

granulation tissue

the tissue that normally forms during the healing of a wound

granuloma

a general term used to describe small, knot-like swellings of granulation tissue in the epidermis

hair

rod-like structures composed of tightly fused, dead protein cells filled with hard keratin

hair follicles

the sacs that hold the root of the hair fibers

hematoma

a swelling of clotted blood trapped in the tissues, usually caused by an injury

heparin

an anticoagulant released in response to an injury

hidrosis

the production and excretion of sweat

hirsutism

the presence of excessive body and facial hair in women, usually occurring in a male pattern

histamine

released in response to allergens, causes the signs of an allergic response, including itching and increased mucus secretion

hyperhidrosis

a condition of sweating in one area or over the whole body

ichthyosis

a group of hereditary disorders characterized by dry, thickened, and scaly skin

impetigo

a highly contagious bacterial skin infection that commonly occurs in children

incision and drainage (I&D)

involves incision (cutting open) of a lesion, such as an abscess, and draining the contents

infestation

the dwelling of microscopic parasites on external surface tissue

keloid

an abnormally raised or thickened scar that expands beyond the boundaries of the incision

keratin

a fibrous, water-repellant protein

keratosis

any skin growth, such as a wart or a callus, in which there is overgrowth and thickening of the skin

koilonychia

a malformation of the nails in which the outer surface is concave or scooped out like the bowl of a spoon

laceration

a torn or jagged wound, or an accidental cut wound

laser

light amplification by stimulated emission of radiation

lesion

a pathologic change of the tissues due to disease or injury

lipectomy

the surgical removal of fat beneath the skin

lipedema

a chronic abnormal condition that is characterized by the accumulation of fat and fluid in the tissues just under the skin of the hips and legs

lipocytes

fat cells

lipoma

a benign, slow-growing fatty tumor located between the skin and the muscle layer

liposuction

the surgical removal of fat beneath the skin with the aid of suction

lunula

a pale half-moon-shaped region at every nail root that is generally most easily seen in the thumbnail

lupus erythematosus

an autoimmune disorder characterized by a red, scaly rash on the face and upper trunk

macule

a discolored, flat spot that is less than 1 cm in diameter

male pattern baldness

a common hair-loss pattern in men, with the hairline receding from the front to the back until only a horseshoe-shaped area of hair remains in the back and at the temples

malignant melanoma

a type of skin cancer that occurs in the melanocytes; this is the most serious type of skin cancer

mast cells

found in the connective tissue of the dermis; respond to injury, infection, or allergy by producing and releasing substances, including heparin and histamine

melanocytes

cells that produce and contain a dark brown to black pigment called melanin

melanosis

any condition of unusual deposits of black pigment in different parts of the body

miliaria

an intensely itchy rash caused by blockage of the sweat glands by bacteria and dead cells; also known as heat rash and prickly heat (do not confuse with malaria)

Mohs surgery

a technique used to treat skin cancer

nail root

fastens the nail to the finger or toe by fitting into a groove in the skin

nails

protect the dorsal surface of the last bone of each toe and finger

necrotizing fascilitis

a severe infection caused by Group A strep bacteria

nevi

small, dark skin growths that develop from melanocytes in the skin; also known as moles

nodule

a solid, raised skin lesion that is larger than 0.5 cm in diameter and deeper than a papule

onychia

an inflammation of the matrix of the nail that usually results in the loss of the nail

onychocryptosis

the edges of a toenail, usually on the big toe, curve inward and cut into the skin; also known as an ingrown toenail

onychomycosis

a fungal infection of the nail

onychophagia

nail biting or nail eating

papilloma

a benign, superficial wart-like growth on the epithelial tissue or elsewhere in the body

papule

a small, raised red lesion that is less than 0.5 cm in diameter and does not contain puss

paronychia

an acute or chronic infection of the skin fold around a nail

pediculosis

an infestation with lice

pediculosis capitis

an infestation with head lice

pediculosis corporis

an infestation with body lice

pediculosis pubis

an infestation with lice in the pubic hair and pubic region

perspiration

secreted by sweat glands and is made up of 99% water plus some salt and metabolic waste products; sweat

perspiring

sweating; one way in which the body excretes excess water

petechiae

very small, pinpoint hemorrhages that are less than 2 mm in diameter

plaque

a scaly, solid raised area of closely spaced papules

polyp

a general term used most commonly to describe a mushroom-like growth from the surface of a mucous membrane, such a polyp in the nose

pores

openings on the surface of the skin for the ducts of the sweat glands

port-wine stain

a large, reddish-purple discoloration of the face or neck

pressure sore

an ulcerated area in which prolonged pressure has caused tissue death

pruritus

also known as itching and is associated with most forms of dermatitis

psoriasis

a common skin disorder characterized by flare-ups in which red papules covered with silvery scales occur on the elbows, knees, scalp, back, or buttocks

puncture wound

a deep hole made by a sharp object such as a nail

purpura

the appearance of multiple purple discolorations on the skin caused by bleeding underneath the skin

purulent

producing or containing pus

pustule

a small, circumscribed lesion containing pus; a pimple

pyoderma

any acute, inflammatory, pus-forming bacterial skin infection such as impetigo

rhinophyma

a condition characterized by hyperplasia (overgrowth) of the tissues of the nose and is associated with advanced rosacea; usually occurs in older men

rhytidectomy

the surgical removal of excess skin and fat around the face to eliminate wrinkles; also known as a facelift

rosacea

characterized by tiny red pimples and broken blood vessels

scabies

a skin infection caused by an infestation with the itch mite

scales

flakes or dry patches made up of excess dead epidermal cells

scleroderma

an autoimmune disorder in which the connective tissues become thickened and hardened, causing the skin to become hard and swollen

sclerotherapy

used in the treatment of spider veins

sebaceous cyst

a closed sac associated with a sebaceous gland that is found just under the skin

sebaceous glands

secrete sebum (oil) that lubricates the skin and discourages the growth of bacteria on the skin

seborrhea

overactivity of the sebaceous glands that results in the production of an excessive amount of sebum

seborrheic dermatitis

an inflammation that causes scaling and itching of the upper layers of the skin or scalp

seborrheic keratosis

a benign skin growth that has a waxy or "pasted on" look

sebum

released through ducts opening into the hair follicles

second-degree burn

partial thickness burn; blisters, damage to the epidermis and dermis

sensory nerve endings

sensory receptors stimuli such as touch, temperature, pain, and pressure

skin

covers the external surfaces of the body

skin cancer

a harmful, malignant growth on the skin

skin tags

small, flesh-colored or light brown polyps that hand from the body by fine stalks

sleep hyperhidrosis

the occurrence of excessive hyperhidrosis during sleep; also known as night sweats

squamous cell carcinoma

originates as a malignant tumor of the scaly squamous cells of the epithelium; however, it can quickly spread to other body systems

See More

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set