Medical Terms
Alcohol Withdrawal
A set of signs and symptoms seen when alcohol is withheld from someone with alcohol dependence; characterized by CNS hyperexcitability, which may include hallucinations, seizures, and death.
Aldosterone
An adrenal gland hormone that instructs nephrons to increase reabsorption of salt and water, helping to raise blood pressure.
Alimentary Canal
Main human digestive tract that runs throughout the body, also known as the gastrointestinal tract.
Allergen
A substance that causes an allergic reaction.
Allergy
An overreaction of the immune system to a harmless substance.
Alopecia
A condition characterized by hair loss from the scalp or body due to various causes including genetics, autoimmune disease, or medication.
Alveoli
Tiny air sacs with thin walls located at the end of bronchioles.
Alzheimer'S Disease
A disease of the brain characterized by progressive impairment of memory and other brain functions such as orientation and judgment; it is named after the nineteenth-century German psychiatrist Alois Alzheimer.
Amino Acids
A set of nitrogen-containing compounds that form the building blocks for the production of protein molecules.
Ammonium
A metabolic waste product that is converted into urea in the body.