Category: A
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Refeeding syndrome
The potentially fatal metabolic response of a starved individual to feeding, either enteral or parenteral. The correction of electrolyte imbalances is imperative before gradual refeeding to prevent hypophosphatemia, rhabdomyolysis, and other life-threatening complications,
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Refection
Restoration after hunger or fatigue, especially with food or drink.
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Re-experience
To recall an event, feeling, or thought; to have an intrusive memory or “flashback.” Frequent re-experiencing of traumatic events is one of the symptoms of posttraumatic stress disorder.
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Auditory receptor
One of the hair cells in the organ of Corti in the cochlea of the ear.
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Antigen receptor
Receptors, primarily on white blood cells, that bind with the epitope on foreign antigens, stimulating an immune response.
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Alpha-adrenergic receptor
A site in autonomic nerve pathways responsive to the adrenergic agents norepinephrine and epinephrine; in general, alpha- 1 receptors produce excitatory responses and alpha-2 receptors produce inhibitory responses.
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Accessory receptor
Proteins on the surface of T lymphocytes that enhance the response of the T-cell receptor to foreign antigens and stimulate signals from the receptor to the cytoplasm.
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Limiting reactant
The substance with the lowest concentration in a chemical reaction. Its amount determines the amount of product made from that reaction.
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Actinic ray
A solar ray capable of producing chemical changes.
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Attack rate
The rate of occurrence of new cases of a disease.