Acquired Immunodeficiency Syndrome (AIDS)
- A disease caused by the human immunodeficiency virus
(HIV) and marked by loss of immune function and subsequent susceptibility to disease and infection.
- Abbreviation for Attention Deficit Hyperactivity Disorder
- Abbreviation for Acquired Immunodeficiency Syndrome
- The addiction to alcohol that results in physical withdrawal symptoms when alcohol use is stopped.
- A progressive disease of the brain that results in impaired cognitive functions such as memory, reasoning, and perception.
- See Amygdaloid nucleus
- The oval-shaped area of the brain that contributes to sense of smell, as well as to motivational and emotional responses.
Amyotrophic lateral sclerosis (ALS)
- Also called Lou Gehrig’s disease, ALS is a disease of the motor neurons
that causes weakness and muscle atrophy, ultimately causing paralysis and death.
- An abnormal widening in a localized area of a blood vessel, which can weaken the structure of the blood vessel and lead to rupture.
- A disorder characterized by a pathological fear of being fat and a distorted perception of body shape resulting in obsessive weight-loss efforts that often lead to emaciation and associated health complications.
- A set of disorders, including generalized anxiety disorder (GAD), obsessive-compulsive disorder
(OCD), panic disorder
, posttraumatic stress disorder (PTSD), and social anxiety disorder (SAD), marked by irrational and debilitating fear of everyday occurrences.
- A speech disorder marked by the loss of ability to express or comprehend spoken or written language.
- A genetic disorder that causes the growth of abnormal bundles of blood vessels in the brain.
Attention deficit hyperactivity disorder (ADHD)
- A neurobehavioral disorder that results in an inability to maintain attention and in impulsive behavior.
- A developmental disorder that causes a varying degree of impaired communication skills and is often marked by an obsessive focus on a particular topic of interest. One of the autism spectrum disorders
- The loss of coordination or muscular stability, usually resulting from a disease affecting the cerebellum
- The primary developmental disorder of the autism spectrum disorders
characterized by impaired social interaction abilities, verbal and nonverbal communication skills, and cognitive functioning.
Autism spectrum disorders
- A spectrum of psychological disorders, including Autism
and Asperger syndrome
, primarily marked by impaired social and communicative abilities.
Autonomic nervous system
- The portion of the nervous system
that facilitates several critical body functions, such as heart-muscle activity.
- The fibrous portion of a neuron
that sends signals to target cells via electrical impulse.