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Chapter 4 - Integumentary System Book: Exploring Medical Language 8th Edition (ISBN: 9780323073080)

Outer layer of skin

Epidermis

Horny, or cornified, layer composed of protein. It is contained in the hair, skin, and nails

Keratin

Color, or pigmentation, of the skin

Melanin

Inner layer of skin (also called the true skin)

Dermis

Tiny, coiled, tubular structures that emerge through the pores on the skin's surface and secrete sweat

Sudoriferous (sweat) glands

Secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis

Sebaceous glands

Compressed, keratinized cells that arise from hair follicles, the sacs that enclose the hair fibers

Hair

Originate in the epidermis. Nails are found on the upper surface of the ends of the fingers and toes. The white area at the base of the nail is called the lunula, or moon

Nails

cutane/o, derm/o, dermat/o

Skin

hidr/o

Sweat

kerat/o (NOTE: this is also used to refer to the cornea of the eye)

Horny tissue, hard

onych/o, ungu/o

Nail

seb/o

Sebum (oil)

trich/o

Hair

aut/o

Self

coni/o

Dust

crypt/o

Hidden

heter/o

Other

myc/o

Fungus

necr/o

Death (cells, body)

pachy/o

Thick

rhytid/o

Wrinkles

staphyl/o

Grapelike clusters

strept/o

Twisted chains

epi-

On, upon, over

intra-

Within

Para-

Beside, beyond, around, abnormal

Per-

Through

Sub-

Under, below

Trans-

Through, across, beyond

-a

Noun suffix, no meaning

-coccus (pl. cocci)

Berry-shaped (form a bacterium)

-ectomy

Excision or surgical removal

-ia

Inflammation

-malacia

Softening

-opsy

View of, viewing

-phagia

Eating or swallowing

-plasty

Surgical repair

-rrhea

Flow, discharge

-tome

Instrument used to cut

Define: Dermatitis

Inflammation of the skin

Define: Dermatoconiosis

Abnormal condition of the skin caused by dust

Define: Dermatofibroma

Fibrous tumor of the skin

Define: Hidradenitis

Inflammation of a sweat gland

Define: Leiodermia

Condition of smooth skin

Define: Leukoderma

White skin (white patches caused by depigmentation)

Define: Onychocryptosis

Abnormal condition of a hidden nail (also called ingrown nail)

Define: Onychomalacia

Softening of the nails

Define: Onychomycosis

Abnormal condition of a fungus in the nails

Define: Onychophagia

Eating the nails (nail biting)

Define: Pachyderma

Thickening of the skin

Define: Paronychia

Diseased state around the nail

Define: Seborrhea

Discharge of sebum (oil) (excessive)

Define: Trichomycosis

Abnormal condition of a fungus in the hair

Define: Xeroderma

Dry skin (a mild form of a cutaneous disorder characterized by keratinization and noninflammatory scaling)

Define: Abrasion

Scraping away of the skin by mechanical process or injury

Define: Abscess

Localized collection of pus

Define: Acne

Inflammatory disease of the skin involving sebaceous glands and hair follicles

Define: Actinic keratosis

A precancerous skin condition of horny tissue formation that results from excessive exposure to sunlight. It may evolve into a squamos cell carcinoma.

Define: Albinism

Congenital hereditary condition characterized by partial or total lack of pigment in the skin, hair, and eyes

Define: Basal cell carcinoma (BCC)

Epitheliam tumor arising from the epidermis. It seldom metastasizes but invades local tissue. Common in individuals who have had excessive sun exposure.

Define: Candidiasis

An infection of the skin, mouth (also called thrush), or vagina caused by the yeast-type fungus Candida albicans. Candida is normally present in the mucous membranes; overgrowth causes an infection. Esophageal candidiasis is often seen in patients with AIDS.

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