Paraszimpatikus

The parasympathetic nervous system, often referred to as the parasympatikus in Hungarian, is one of the two main divisions of the autonomic nervous system, the other being the sympathetic nervous system. It is responsible for the body's rest and digest functions, conserving and restoring energy when the body is at rest. The parasympathetic nervous system is often associated with the "fight or flight" response, which is activated during times of stress or danger.

The parasympathetic nervous system is characterized by its use of the neurotransmitter acetylcholine, which is released at the neuromuscular junction to cause muscle contraction. This system also plays a crucial role in the regulation of various bodily functions, including heart rate, digestion, and respiration. It is often referred to as the "rest and digest" system because it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.

The parasympathetic nervous system is controlled by the vagus nerve, which originates from the brainstem and extends down to the abdomen. It innervates most of the organs in the body, including the heart, lungs, and digestive system. The parasympathetic nervous system is also involved in the regulation of the body's immune response and the production of hormones.

In summary, the parasympathetic nervous system is a vital component of the autonomic nervous system, responsible for the body's rest and digest functions. It is characterized by its use of the neurotransmitter acetylcholine and is controlled by the vagus nerve. This system plays a crucial role in the regulation of various bodily functions and is often associated with the "fight or flight" response.