Pertaining to nerve fibers in the SNS that react to epinephrine, norepinephrine, or dopamine neurotransmitters.
An agent that suppresses nausea and vomiting.
A cough suppressant
An irregular heartbeat.
A rapid, irregular atrial rhythm. It causes considerable symptoms including palpitations, and occasional weakness and presyncope. Thrombi can form and embolize to the brain causing a CVA.
Part of the electrical conducting system of the heart, considered the "gateway" between atrial conducting system and the ventricular conducting system.
A heart rate that is too slow, defined as less than 60 bpm.
A decrease in the diameter of the lung's bronchi allowing for more airflow.
Relaxation and an increase in the diameter of the lung's bronchi allowing for more airflow.
A muscle spasm causing narrowing of the airways of the lung, usually accompanied by a cough and wheeze.
Sympathomimetic neurotransmitter family that includes epinephrine, norepinephrine, and dopamine Dependence: The psychological and physical need for a substance.
An enzyme that breaks down catecholamines such as norepinephrine and epinephrine especially in the synaptic cleft.
Pertaining to the detrussor urinae muscle, which forms the external muscle layer of the bladder.
The act of perspiring or sweating.
A form of muscle weakness that tends to be associated with lung cancer.
Exhibiting movement disorders, especially postural and locomotor, resembling Parkinson's disease.
Where an intermediate or final product of a biological pathway stops or slows down one of the initiating steps and eventually reduces the end results of that pathway.
A collection of nerve cells outside of the CNS.
Splitting of glycogen to release glucose Hyperglycemia: Too much glucose in the blood.
Too much glucose in the blood.
A sudden stoppage of blood flow that causes tissue death.
Within the eye.
Constriction of the pupil.
Monoamine oxidase (MAO)
An enzyme that metabolizes norepinephrine and other catecholamines.
Dilation of the pupil.
An autoimmune disease where antibodies attack acetylcholine receptors and cause muscle weakness and fatigue.
Stemming from or caused by the nervous system.
Near the vertebral column.
A tumor of the adrenal medulla that causes excessive release of catecholamines especially epinephrine and norepinephrine.
A disorder that causes pain and discoloration of the extremities.
An autoimmune disease whose main symptoms include dry eyes and mouth.
A heart rate of over 100 bpm caused above the ventricle, either the atria, SA node, or AV junction.
Either mimicking or stimulating the sympathetic nervous system.
A junction between two nerves or a nerve and an effector organ.
Momentary loss of consciousness, a faint.
When repeated drug use results a smaller effect.
The need for increasing doses of a substance in order achieve similar effects or to avoid negative symptoms.
Total peripheral vascular resistance
Degree of resistance to blood flow from systemic blood vessels.
A decrease in diameter of a blood vessel.
An increase in diameter of a blood vessel.
A dry mouth