Parasympathetic nervous system/Related Articles
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- Acetylcholine receptor : Nervous system cell surface proteins that bind acetylcholine and trigger intracellular changes.
- Acetylcholinesterase : An enzyme that catalyzes the hydrolysis of acetylcholine to choline and acetate, causing muscles, ennervated by cholinergic receptors, to relax
- Acetylcholine : A chemical transmitter in both the peripheral nervous system (PNS) and central nervous system (CNS) in many organisms including humans.
- Autonomic nervous system : Neurones that are not under conscious control, comprising two antagonistic components, the sympathetic and parasympathetic nervous systems.
- Cholinergic antagonist : The medications "that bind to but do not activate cholinergic receptors, thereby blocking the actions of acetylcholine or cholinergic agonists."
- Cholinesterase inhibitor : Chemicals that block the action of the enzyme cholinesterase, which breaks down the neurotransmitter acetylcholine; continuous presence of acetylcholine causes continuous muscle contraction
- Nervous system : The control unit of bodily functions in animals.
- Neuroanatomy : The branch of anatomy that studies the anatomical organization of the nervous system.
- Neurotransmitter : A class of chemicals which relay, amplify or modulate electrical signals between a neuron and other cells in the nervous system.
- Pterygopalatine fossa : Small pyramidal space, housing the pterygopalatine ganglion, between the pterygoid process, the maxilla, and the palatine bone.
- Sympathetic nervous system : Portion of the autonomic nervous system concerned with nonvolitional preparation of the organism for emergency situations.
- Syncope : Transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., brain ischemia).
- Tricyclic antidepressant : Adrenergic uptake inhibitors used in the treatment of depression and other diseases; suppress postsynaptic catechol-O-methyl transferase, causing increases in synaptic norepinephrine and serotonin