Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «R»:
Regress: To return or go back, particularly to
return to a pattern of behavior or level of skill characteristic of a
younger age. For example, if a three-year-old child begins to regress
by losing the ability to control his bowels or speak, that is a cause
for medical concern. In reference to a ...
A gene that regulates the expression of other genes. A regulatory gene is a nosy gene whose prime preoccupation is to horn in on other genes and control the rate at which they make products....
Regulatory region: A region of a chromosome that
controls gene expression.
In terms of DNA, it is a regulatory sequence....
Regulatory sequence: A sequence of bases in DNA that
controls gene expression....
Regulatory T cell
Regulatory T cell: A T cell (T lymphocyte) that regulates the activity of another T cell, usually by suppressing its activity. This process can be beneficial or harmful. There are several different types of regulatory T cells....
Regurgitation: A backward flowing. For example, of
food. Or the sloshing of blood back into the heart (or between chambers of the heart) when a heart valve is incompetent and does not close effectively....
Regurgitation, aortic: See: Aortic regurgitation....
Regurgitation, mitral: See: Mitral regurgitation....
Rehab: Short for Rehabilitation....
Rehabilitation: The process of restoration of skills by a person who has had an illness or injury so as to regain maximum self-sufficiency and function in a normal or as near normal manner as possible. For example, rehabilitation after a stroke may help the patient walk again and speak clearly aga...
Rehydrate: To restore lost water to the body
tissues and fluids. Prompt rehydration is imperative whenever
dehydration occurs, from diarrhea, exposure, lack of drinking water,
or medication use. Rehydration can be by oral or IV administration of
Rehydration: The process of restoring lost water to the body tissues and fluids. Prompt rehydration is imperative whenever
dehydration occurs, from diarrhea, exposure, lack of drinking water, or medication use. Rehydration can be by the oral route or by the intravenous administration of fluids....
Reiki: ("RAY-kee") A Japanese
word representing Universal Life Energy. Reiki is based on the belief that when
spiritual energy is channeled through a reiki practitioner, the patient's spirit
is healed, which in turn heals the physical body....
Reimplantation: Synonymous with replantation. See: Replantation....
Reinnervate: To restore nerve function after it has been lost. See: Reinnervation....