Medical terminology

hidr/o
sweat
ichthy/o
dry, scaly (fish-like)
kerat/o
hard
myc/o
fungus
onchy/o
nail
nid/o
cyst
phyt/o
plant
ipil/o
hair
rhytid/o
wrinkle
seb/o
sebum
squam/o
scale-like
trich/o
hair
ungu/o
nail
xantho
yellow
de-
lack of
-ion
process
-sis
state of
alopecia areata
hair falls off in patches
comedo
blackhead
sebaceous cyst
filled with yellow, cheesy sebum found on the scalp, vulva and scrotum
fissure
crack or groove like sore
macule
discolored, flat lesion smaller than 1 cm in diameter
nodule
solid round or oval lesion 1 cm or greater
papule
small solid lesion of the skin
vesicle
small papule of clear fluid, blister
wheal
small or large swollen papule – mosquito bite
callus
increased growth of cells in the horny layer of the epidermis due to pressure or friction – corn
eczema
inflammatory skin disease with erythematous lesions
exanthematous viral disease
rash due to viral infection such as rubella – damaged skin is charred white
impetigo
bacterial skin disease – crusted over lesions and vesicles – contagious and marked by pyoderma
keratosis
thickened area of epidermis
leukoplakia
white thickened patches on mucous membrane tissue of tongue or cheek, precancerous – common in smokers
onycholysis
loosening of the nailbed
psoriasis
chronic dermatosis marked by itchy, scaly red patches and covered in gray scales.
purpura
patches of purplish discoloration
tinea
infection of skin caused by fungus
verruca
epidermal growth caused by a virus – wart
vitiligo
loss of pigment in areas of the skin
basal cell carcinoma
malignant tumor of the basal cell layer of the epidermis
Kaposi’s sarcoma
Associated with AIDS, malignant, cutaneous nodules usually on the lower extremities
malignant melanoma
cancerous growth composed of melanocytes – attributed to exposure to sunlight
nevus
pigmented lesion of the skin
squamous cell carcinoma
malignant tumor of the squamous epithelial cells of the epidermis
multiple myeloma
cancer develops in plasma cells (WBCs that make antibodies)
macrophages are located where
lymph nodes
lymphoma
cancer of lymph tissue found in lymph nodes, spleen, liver and bone marrow
lymphedema
swelling of tissue due to acclumulation of lymph fluid in intercellular spaces
lymph contains
water, salts, sugar and wastes of metabolism
acquired passive immunity
from disease, vaccinations, and transfer of immune cells (bone marrow transplant)
acquired passive immunity
antitoxins (for snake bites and rabies infections) and maternal antibodies
antibodies
proteins of high molecular weight produced by B cells after stimulation by an antigen and act aginst the antigen in an immune response
B-cell lymphocytes
produce antibodies
Hodgkin’s disease
malignant tumors of lymphoid tissues – symptoms include lymphadenopathy, splenomegaly, fever, weight loss. Type of lymphoma.
interstitial fluid
fluid between the cells
lymph
clear watery fluid separate from the blood system
lymphedema
swelling of tissue due to accumulation of lymph fluid in intercellular spaces
macrophages are located where
lymph nodes
multiple myeloma
form of cancer that develops in plasma cells, the white blood cells that make antibodies.
sarcoidosis
chronic inflammatory granulomas in the lungs, lymph nodes and other organs
T-cell lymphocytes
attack bacteria and foreign cells by attaching to the cells, poking holes in them and injecting toxic chemicals in the cells.
thymus gland
located in the upper mediastinum between the lungs; largest in fetal life and childhood

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