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Demarcation
Demarcation A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word "demarcation" is used in medicine mainly in the sense of determining and marking off boundaries. For example, the surface demarcation in respect to damaged tissue can refer to the boundary between the living tissue and the necrotic (dead) tissue.
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Demarcation
A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word "demarcation" is used in medicine mainly in the sense of determining and marking off boundaries. For example, the surface demarcation in respect to damaged tissue can refer to the boundary between the living tissue and the necrotic (dead) tissue.
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
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Demadex
Demadex is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): torsemide.
Demasculinization
The developmental process in which masculinization is inhibited or suppressed. In males, the term applies chiefly to demasculinization of the brain attributed to a hormonal anomaly in prenatal life.
Demazin
Demazin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): chlorpheniramine maleate; phenylpropanolamine hydrochloride.
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Delirium tremens
A neurological symptom of alcohol withdrawal seen in chronic alcoholism, with includes symptoms of psychosis. These may include uncontrollable trembling, hallucinations, severe anxiety, sweating, and sudden feelings of terror. Delirium tremens can be both frightening and, in severe cases, deadly. Treatment includes observation, comfort care, and in some cases medication.
Delivery, breech
Delivery in which the buttocks present before the head.
Delivery, footling
There are single-footling or double-footling deliveries depending upon whether the presenting part of the baby at delivery is just one foot or both feet.
Delta cell, pancreatic
A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the pancreas, the delta cells are located in areas called the islets of Langerhans. The delta cells make somatostatin, a hormone that inhibits the release of numerous hormones in the body.
Delusional parasitosis
A mistaken belief that one is infested by parasites such as mites, lice, fleas, spiders, worms, or other organisms.
Demarcation
Demonophobia
An abnormal and persistent fear of evil supernatural beings in persons who believe such beings exist and roam freely to cause harm. Those who suffer from this phobia realize their fear is excessive or irrational. Nevertheless, they become unduly anxious when discussing demons, when venturing alone into woods or a dark house, or when watching films about demonic possession and exorcism.
Demyelination
A degenerative process that erodes away the myelin sheath that normally protects nerve fibers. Demyelination exposes these fibers and appears to cause problems in nerve impulse conduction that may affect many physical systems. Demyelinization is seen in a number of diseases, particularly multiple sclerosis. Diagnosis is by functional observation and by testing for myelin protein in the blood.
Dendritic
Referring to a dendrite, a short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons next to one another are tipped by synapses (tiny transmitters and receivers for chemical messages between the cells).
Dendritic cell
A special type of cell that is a key regulator of the immune system, acting as a professional antigen-presenting cell (APC) capable of activating naïve T cells and stimulating the growth and differentiation of B cells.
Denervate
To deprive of the nerve supply. Denervate is the opposite of innervate.
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