In the nervous system a joining of nerves or blood vessels.ĪNESTHESIOLOGIST - Physician who administers pain-killing medications during surgery.ĪNENCEPHALY - Absence of the greater part of the brain, often with skull deformity.ĪNESTHESIA - Loss of sensation of a body part or of the body induced by the administration of a drug.ĪNESTHESIOLOGIST - Physician who administers pain-killing medications and monitors complications and reactions during surgery.ĪNEURYSM - Dilation of an artery, formed by a circumscribed enlargement of its wall.ĪNGIOGRAM - A medical imaging report that shows the blood vessels leading to and in the brain, obtained by injecting a dye or contrast substance through a catheter.ĪNGIOGRAPHY - Radiography of blood vessels using the injection of material opaque to X-rays to give better definition to the vessels.ĪNOREXIA - An eating disorder marked by loss of appetite leading to excessive weight loss.ĪNTI-COAGULANT - A medication that prevents coagulation (clotting) of the blood.ĪNTIDIURETIC - An agent that reduces the output of urine.ĪPHASIA - Difficulty with or loss of use of language in any of several ways, including reading, writing or speaking, not related to intelligence but to specific lesions in the brain.ĪPNEA - Temporary cessation of breathing.ĪPOPLEXY - Often used as equivalent to stroke, this is a condition in which there is bleeding into an organ or blood flow to an organ has ceased.ĪRACHNOID - Middle layer of membranes covering the brain and spinal cord.ĪRACHNOIDITIS - Inflammation of the arachnoid membrane, most commonly seen around the spinal cord and cauda equina.ĪREA - (Cortical) - A part of the brain having a special function as in A term used to denote the alteration in cell character that constitutes malignancy.ĪNASTOMOSIS - A communication, direct or indirect: a joining together. ABSCESS- A circumscribed collection of pus.ĪCOUSTIC NEUROMAS - Benign tumor of the hearing nerve (eighth nerve).ĪCROMEGALY - Disorder marked by progressive enlargement of the head, face, hands, feet and thorax, due to the excessive secretion of growth hormone.ĪDENOMA - A benign growth formed of glandular tissue.ĪGNOSIA - Absence of the ability to recognize the form and nature of persons and things.ĪGRAPHIA - Inability to write due either to muscular coordination issues or to an inability to phrase thought.ĪMAUROSIS- Loss of vision without a visible lesion in the eye structures or optic nerve.ĪMAUROSIS FUGAX - Temporary blindness occurring in short periods.ĪMENORRHEA - Absence of the menses due to causes other than pregnancy or age.ĪMNESIA - Loss of memory caused by brain damage or by severe emotional trauma.ĪNALGESIA - Loss of sensitivity to pain, loss of response to a painful stimulus.ĪNAPLASIA - In the case of a body cell, a reversion to a more primitive condition.
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