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134 Cards in this Set

  • Front
  • Back

The skin and its accessory structures (hair and nails)

Integumentary system

Four functions of skin

Protects (membrane), lubricates & cools (sebum & sweat), receptor for sensations, maintains temperature (thermoregulation)

Outermost layer of skin consisting of squamous epithelium

Epidermis

Middle layer of the skin; dense, fibrous connective tissue

Dermis or Corium

Innermost layer of the skin, contains fat tissue

Subcutaneous tissue

two functions of hair

Sensory, thermoregulation

Cells filled with hard protein, keratin

Hair cells

Shaft that holds hair; sac within which each hair grows

Hair Follicle

Hard keratin plates covering toes and fingers

Nails

Two types of skin glands

Sebaceous, sweat

Fat cell

Adipocyte

Person with skin deficient in pigment

Albino

One of the largest dermal exocrine glands located in the axilla and genital areas

Apocrine sweat gland

Deepest region of the epidermis; gives rise to all the epidermal cells; contains melanocytes

Basal layer

Structural protein found in the skin and connective tissue

Collagen

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

Cuticle

Most numerous sweat - producing exocrine gland in skin

Eccrine sweat gland

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

Epithelium

Hard protein material found in the epidermis, hair, and nails

Keratin

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

Lunula

Skin pigment formed by melanocytes in the epidermis; protects living skin layers from further exposure to UV rays

Melanin

Soft tissue surrounding the nail border

Paronychium

Tiny opening on the surface of the skin

Pore

Oil - secreting gland in the dermis that is associated with hair follicles

Sebaceous gland

Oily substance secreted by sebaceous glands

Sebum

Flat, scale - like cells composing the epidermis

Squamous epithelium

Arranged in layers

Stratified

A layer (of cells)

Stratum (plural strata)

Outermost layer of the epidermis; consists of flattened, keratinized cells

Stratum corneum

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, 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

Yellow

Cyan/o

Blue

Eosin/o

Rosy

Erythr/o

Red

Jaund/o

Yellow

Lute/o

Yellow

Poli/o

Gray

Pus- filled cutaneous lesion

Pustule

Smooth, edematous, reddish papule or plaque

Wheal

Fluid or semisolid thick - walled filled sac

Cyst

Clear fluid, blister

Vesicle

Dried serum and cellular debris

Crust (scab)

benign growth extending from mucous membrane surface

Polyp

Discolored, flat cutaneous lesion

Macule

Wearing away, loss of epidermis

Erosion

Solid, elevated mass, more than 1 cm

Nodule

Slit or groove

Fissure

Open sore on skin or mucous membrane

Ulcer

Small solid elevation pimple or plaque

Papule

The absence of hair where it normally grows

Alopecia

Obsessive hair - pulling

Trichotillomania

Blue - black marks on the skin

Ecchymosis (bruise)

Small, pinpoint hemorrhage

Petechia

Itching

Pruritus

An acute allergic reaction with red, round wheals on the skin

Urticaria (hives)

Papular and pustular eruption of skin with increased production of sebum

Acne

Blackhead

Comedo

A diffuse infection of the skin

Cellulitis

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

Eczema (atopic dermatitis)

A rash due to a virus (for example rubella)

Exanthematous viral disease

The death of tissue with loss of blood supply

Gangrene

Contagious pyoderma caused by staph or strep

Impetigo

Chronic recurrent dermatosis with silver gray scales that itch

Psoriasis

Parasitic (tiny mites) and infectious pruritis

Scabies

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

Scleroderma

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

Systemic Lupus erythematosus (SLE)

infection of the skin caused by fungus

Tinea

Tinea corporis

Ringworm

Tinea unguium

Nail fungus

Loss of pigment in areas of the skin causing milk - white patches

Vitiligo

An increased growth of cells in keratin layer of epidermis due to friction against the skin

Callus

Hypertrophied thickened scar after trauma or surgery

Keloid

Thickened area of epidermis

Keratosis

White, thickened patches on tongue or cheek

Leukoplakia

Pigmented lesion

Nevus (plural nevi)

Warts caused by virus

Verruca

Malignant tumor of the basal cell layer of the epidermis

Basal cell carcinoma

Malignant tumor of the squamous epthelial cells of the epidermis

Squamous cell carcinoma

ABCDs of malignant melanoma

Asymmetry, Border (irregular or circumscribed), Color variation, Diameter (usually larger than 6 mm)

Malignant, vascular, neoplastic growth characterised by cutaneous nodules

Kaposi sarcoma

pus or fluid samples are examined to detect microorganisms

Bacterial analyses

Scrapings for culture and microscopic examination after treatment with KOH

Fungal tests

Destroy tissue with subzero temperatures using liquid nitrogen

Cryosurgery

Scrape lesion with sharp curet (scalpel)

Currettage

Destroy tissue by burning with electric spark

Electrodessication

Removes thin layers of growth to examine under a microscope (basal and squamous cell)

Mohs surgery

Punch and shave to remove for examination in pathology lab

Skin biopsy

Test reaction of body to allergens via scratch or patch tests

Skin tests

Bx

Biopsy

Psoralen- ultraviolet A (light therapy for psoriasis

PUVA

-algia

Pain

-derma

Skin

-esis

Condition

-lysis

Breakdown, separation, destruction, loosening

-ose

Full of, pertaining to, sugar

-osis

Condition, usually abnormal

-ous

Pertaining to

-plakia

Plaque

-plasty

Surgical repair

-rrhea

Flow, discharge

Epidermis does not contain...

blood, lymphatic vessels, or connective tissue

Dead epithelial cells filled with keratin that slough off in 3 to 4 weeks

Horny cells

Layer directly below the stratum corneum that continuously produces new cells to replace worn - off cells

Stratum germinativum

Prevents drying of the skin of the eardrum and ear canal

Cerumen

Infestation of lice

Pediculosis