Acetylcholine

Acetylcholine is a neurotransmitter that plays an important role in regulating many body functions. It is released at the endings of nerve fibers, which allows signals to be transmitted between cells. Acetylcholine is involved in the functioning of the parasympathetic nervous system, which is responsible for the regulation of internal organs and muscles.

Acetylcholine breaks down into two components - acetol and choline. Choline is a precursor to the neurotransmitter acetylcholine. Cholinesterase is an enzyme that destroys acetylcholine, so anticholinesterase drugs are used to prolong its action.

Curare and atropine block the action of acetylcholine on muscle membranes, resulting in muscle paralysis. Physostigmine and other anticholinesterase drugs, on the contrary, prolong the action of acetylcholine and block the effect of cholinesterase on its breakdown.

In general, acetylcholine plays an important role in regulating many functions in the body and can be used in the treatment of various diseases associated with impaired transmission of nerve impulses.



Acetylcholine is one of the most important neurotransmitters in the human body. It plays an important role in regulating many functions, including memory, attention, mood and motor activity. In this article we will look at what acetylcholine is, its functions and role in the body.

Acetylcholine is a neurotransmitter that is released from the endings of preganglionic and postganglionic neurons of the parasympathetic system. It is involved in the transmission of nerve impulses between neurons and muscles. After transmitting the impulse, acetylcholine is quickly destroyed by the enzyme cholinesterase.

One of the main functions of acetylcholine is the regulation of muscle tone. When the concentration of acetylcholine increases, the muscles relax, and when the concentration decreases, they contract. This allows you to control muscle movement and ensure a balance between relaxation and contraction.

Acetylcholine also plays an important role in memory and attention. It is involved in the formation of new connections between neurons, which allows you to store information and improve cognitive functions. In addition, acetylcholine affects a person’s mood and emotional state.

However, acetylcholine can be toxic to the body. Excessive amounts can lead to disruption of the nervous system, for example, to the development of Alzheimer's disease. Therefore, it is important to maintain a balance of acetylcholine and other neurotransmitters.

In conclusion, acetylcholine is an important neurotransmitter involved in the regulation of many body functions. It plays a key role in the development of memory, attention and mood. However, its excess can lead to serious illnesses, so it is necessary to maintain the balance of neurotransmitters and monitor your health.



Acetylcholine is a neurotransmitter that plays an important role in regulating the functioning of the nervous system. It is released at the endings of all preganglionic autonomic fibers and many postganglionic neurons of the parasympathetic nervous system, as well as at neuromuscular junctions.

After transmission of the nerve signal, acetylcholine breaks down into acetic acid and choline. However, the enzyme cholinesterase can quickly break down acetylcholine, resulting in a decrease in its activity.

Atropine and curare block the action of acetylcholine on muscle membranes, causing muscle paralysis. Physostigmine and other anticholinesterase drugs prolong the effect of acetylcholine by blocking the action of cholinesterase.