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idiopathic
Unknown cause.
impetigo
A superficial skin
infection, commonly occurring on the face. This contagious bacterial
skin infection, usually of children, is characterized by the eruption of
superficial pustules and the formation of thick yellow crusts.
inactive electrode
A synonym for the
positive, indifferent, dispersive or return electrode. The ground.
indifferent electrode
See inactive electrode or
dispersive electrode.
infection
Invasion by and
multiplication of pathogenic microorganisms in a bodily part or tissue,
which may produce subsequent tissue injury and progress to overt disease
through a variety of cellular or toxic mechanisms. A pathological state
caused by disease organisms (bacteria, viruses, etc.).
inflammation
A localized protective
reaction of tissue to irritation, injury, or infection, characterized by
pain, redness, swelling, and sometimes loss of function.
infundibulum
The upper portion of hair
follicle, extending from the entrance of the sebaceous duct to the skin
surface. Any of various funnel-shaped bodily passages.
intermediate hair
Texture, diameter, and/or
coarseness between that of vellus and terminal hair.
isthmus
The middle portion of the
hair follicle, demarcated from the opening of the sebaceous duct into
the hair follicle, above, to the insertion of the arrector pili muscle,
below.
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