U2 - Integumentary System Flashcards
abscess
a localized collection of pus in any body part
abrasion
a scraping or rubbing away of the skin or mucous membrane
albinism
a genetic condition characterized by the absence of pigment in the skin, hair, and eyes.
alopecia
partial or complete loss of hair
basal cell carcinoma
a malignant tumour of the basal cell layer of the epidermis
carcinoma
a cancer of the epithelial tissue
cerumen
yellowish-brown waxy secretion of the ceruminous gland
ceruminous gland
a modified sweat gland that lubricates the ear canal
cryosurgery
the destruction of tissue by rapid freezing
curettage
scraping away abnormal tissue
debridement
removal of debris, foreign objects, and damaged or necrotic tissue from a wound to prevent infection and promote healing
dermis
the layer of the skin directly beneath the epidermis
diaphoresis
the secretion of sweat
ecchymosis
a localized area of bleeding under the skin
epidermis
the outermost layer of the skin
epithelium
the tissue that covers the internal and external surfaces of the body
fissure
a cracklike sore or groove on the surface of an organ
follicle
a small secretory sac
impetigo
contagious superficial skin infection
integumentary
the body system consisting of the skin and it’s accessory structures
keratin
a hard fibrous protein
laceration
a tear in the skin
lanugo
soft, very fine hair that covers the body of the developing fetus
lesion
any visible damage to the tissues of the skin
lunula
the crescent-shaped pale area at the base of the fingernail or toenail
macule
a small, flat discolouration of the skin
malignant melanoma
a cancerous skin tumour originating from melanocytes
melanin
the pigment that gives human skin, hair, and eyes their colour
melanocyte
the cell that produces pigment
nevus
a pigmented elevation of the skin with a definite border
nodule
a small swelling protruding above the skin
papule
a small, solid, circumscribed elevation on the skin
pediculosis
infestation with lice
petechiae
small pinpoint hemorrhages on the skin
pruritus
intense itching
psoriasis
silvery-white scales covering round, raised, reddened plaques
pustule
a small elevation of the skin filled with pus
sebaceous gland
a gland that secretes an oily substance onto the skin
sebum
the oily secretions of the sebaceous gland
skin biopsy
the removal of a small piece of tissue from a skin lesion for analysis
stratum basale
the layer of the epidermis where new cells are continually being reproduced
stratum corneum
the outermost layer of the epidermis
subcutaneous tissue
the fatty layer of tissue located immediately beneath the dermis
sudoriferous gland
a gland that secretes sweat to the surface of the skin
tinea pedis
fungal infection of the foot
ulcer
a circumscribed, open sore or lesion of the skin or mucous membrane
vesicle
a small thin-walled skin lesion containing clear fluid
wheal
slightly elevated lesion of the skin that is paler in the center than its surrounding edges
