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

