Category: Ia-In
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Involution
A retrograde change. After treatment, a tumor may involute; with advancing age, there may be physical and emotional involution.
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Involute
1. Literally, to turn inward or roll inward. 2. To decrease in size after an enlargement. The uterus involutes after pregnancy. The thymus involutes after adolescence. 3. To undergo a retrograde change. After treatment, a tumor may involute. 4. To shrink physically and emotionally with advancing age. From the Latin involutio, from in- meaning into + volvere meaning to roll.
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Involuntary
Done other than in accordance with the conscious will of the individual. The opposite of voluntary. The terms “voluntary” and “involuntary” apply to the human nervous system and its control over muscles. The nervous system is divided into two parts — somatic and autonomic. The somatic nervous system operates muscles that are under voluntary control. The autonomic (automatic…
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Invert
1) To turn inward. To invert the foot is to move its forepart toward the midline of the body. 2) To turn upside down or inside out. Inversion of the nipple can be normal or be a sign of an underlying tumor. 3) To reverse in position or order. A DNA sequence may be inverted. From the Latin invertere,…
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Invasive candidiasis
A fungal infection that occurs when Candida (a yeast-like fungus) enters the bloodstream and then spreads through the body. Candida is the fourth most common cause of bloodstream infection among hospitalized patients in the US. A survey found that candidemia (bloodstream infection with Candida) occurs in 8 of every 100,000 persons per year. Persons at high risk…
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Intubate
To put a tube in, commonly used to refer to the insertion of a breathing tube into the trachea for mechanical ventilation. For example, as a life-saving measure, an emergency room physician might intubate a patient who is not breathing adequately so that the lungs can be ventilated.
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Intrinsic
1. An essential or inherent part of a something such as a structure.2. Coming from within, from the inside. Proteins have intrinsic signals that govern their transport and localization in the cell.From the Latin intrinsecus meaning situated on the inside. The opposite of intrinsic is extrinsic.
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Intravenous (IV)
1) Into a vein. Intravenous (IV) medications are a solutions administered directly into the venous circulation via a syringe or intravenous catheter (tube). 2) The actual solution that is administered intravenously. 3) The device used to administer an intravenous solution, such as the familiar IV drip.
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Intrauterine
In the uterus.
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Intraoral
Within the mouth.