Atrium
Atrium: An entry chamber. On both sides of the heart, the atrium is the chamber that leads to the ventricle.
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- Atrophic vaginitis
Atrophic vaginitis: Thinning of the lining (endothelium) of the vagina due to decreased production of estrogen. Atrophic vaginitis may occur with menopause.
- Atrophy
Atrophy: A wasting away or diminution. Muscle atrophy is a decrease in muscle mass, often due to extended immobility.
- Atropine
Atropine: A drug, made from the belladonna plant, that is administered via injection, eye drops, or in oral form to relax muscles by inhibiting nerve responses.
- Atropine psychosis
Atropine psychosis: A syndrome characterized by dry mouth, blurred vision, forgetfulness, and difficulty with urination triggered by atropine and the anticholinergic effects of other drugs, particularly anti-psychotic medications. Treatment is to reduce or stop the medication.
- ATSDR
ATSDR: The Agency for Toxic Substances and Disease Registry, a part of the U.S. Department of Health and Human Services under the Public Health Service that works with states and other federal agencies to prevent exposure to hazardous substances from waste sites. The agency conducts public health assessments, health studies, surveillance activities, and health education […]