Definitions for acetylcholine
əˌsit lˈkoʊ lin, əˌsɛt-acetyl·choline

Princeton's WordNetRate this definition:0.0 / 0 votes

1. acetylcholinenoun

   a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems

GCIDERate this definition:0.0 / 0 votes

1. acetylcholinenoun

   a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is C7H17NO3. Structural formula (CH3)3N(+)CH2CH2.O.CO.CH3.OH(-). Acetylcholine is the first recognized and best-studied of the neurotransmitters. At receptors it is recycled into choline by the action of acetylcholinesterase. Acetylcholinesterase inhibitors therefore function as nerve poisons. For biochemical studies it is prepared typically in the chloride or bromide forms.

WiktionaryRate this definition:0.0 / 0 votes

1. acetylcholinenoun

   A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CHCOOCHCHN(CH).

WikipediaRate this definition:0.0 / 0 votes

1. Acetylcholine

   Acetylcholine (ACh) is an organic chemical that functions in the brain and body of many types of animals (including humans) as a neurotransmitter. Its name is derived from its chemical structure: it is an ester of acetic acid and choline. Parts in the body that use or are affected by acetylcholine are referred to as cholinergic. Substances that increase or decrease the overall activity of the cholinergic system are called cholinergics and anticholinergics, respectively. Acetylcholine is the neurotransmitter used at the neuromuscular junction—in other words, it is the chemical that motor neurons of the nervous system release in order to activate muscles. This property means that drugs that affect cholinergic systems can have very dangerous effects ranging from paralysis to convulsions. Acetylcholine is also a neurotransmitter in the autonomic nervous system, both as an internal transmitter for the sympathetic nervous system and as the final product released by the parasympathetic nervous system. Acetylcholine is the primary neurotransmitter of the parasympathetic nervous system.In the brain, acetylcholine functions as a neurotransmitter and as a neuromodulator. The brain contains a number of cholinergic areas, each with distinct functions; such as playing an important role in arousal, attention, memory and motivation.Acetylcholine has also been found in cells of non-neural origins as well as microbes. Recently, enzymes related to its synthesis, degradation and cellular uptake have been traced back to early origins of unicellular eukaryotes. The protist pathogen Acanthamoeba spp. have shown evidence of the presence of ACh, which provides growth and proliferative signals via a membrane located M1-muscarinic receptor homolog.Partly because of its muscle-activating function, but also because of its functions in the autonomic nervous system and brain, many important drugs exert their effects by altering cholinergic transmission. Numerous venoms and toxins produced by plants, animals, and bacteria, as well as chemical nerve agents such as Sarin, cause harm by inactivating or hyperactivating muscles through their influences on the neuromuscular junction. Drugs that act on muscarinic acetylcholine receptors, such as atropine, can be poisonous in large quantities, but in smaller doses they are commonly used to treat certain heart conditions and eye problems. Scopolamine, or Diphenhydramine, which act mainly on muscarinic receptors in the brain, can cause delirium, hallucinations, and amnesia. The addictive qualities of nicotine are derived from its effects on nicotinic acetylcholine receptors in the brain.

ChatGPTRate this definition:0.0 / 0 votes

1. acetylcholine

   Acetylcholine is a neurotransmitter, which is a type of chemical messenger transmitted by nerve signals in the brain and nervous system. This organic molecule is involved in many functions including muscle stimulation, memory formation and learning, regulation of heartbeat, and pain responses. Its imbalance or disruption can lead to diseases such as Alzheimer's disease and myasthenia gravis.

WikidataRate this definition:0.0 / 0 votes

1. Acetylcholine

   Acetylcholine is an organic, polyatomic cation that acts as a neurotransmitter in both the peripheral nervous system and central nervous system in many organisms, including humans. It is an ester of acetic acid and choline, with chemical formula CH 3COO(CH 2)2N+ (CH 3)3 and systematic name 2-acetoxy-N,N,N-trimethylethanaminium. Acetylcholine is one of many neurotransmitters in the autonomic nervous system and is the only neurotransmitter used in the motor division of the somatic nervous system. Acetylcholine is also the principal neurotransmitter in all autonomic ganglia. In cardiac tissue acetylcholine neurotransmission has an inhibitory effect, which lowers heart rate. However, acetylcholine also behaves as an excitatory neurotransmitter at neuromuscular junctions in skeletal muscle.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Acetylcholine

   A neurotransmitter. Acetylcholine in vertebrates is the major transmitter at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system. It is generally not used as an administered drug because it is broken down very rapidly by cholinesterases, but it is useful in some ophthalmological applications.

Editors ContributionRate this definition:0.0 / 0 votes

1. acetylcholine

   Is a neurotransmitter in an organism, animal, human and mammal.

   In the peripheral nervous system, acetylcholine activates muscles, and is a major neurotransmitter in the autonomic nervous system. It plays many roles within the human body.

   
   

   Submitted by MaryC on February 6, 2016  

Matched Categories

1. • Neurotransmitter

How to pronounce acetylcholine?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say acetylcholine in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of acetylcholine in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of acetylcholine in Pythagorean Numerology is: 6

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=acetylcholine
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=acetylcholine
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Acetylcholine
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Acetylcholine
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=acetylcholine