PARASYMPATHETIC Meaning and
Definition
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Parasympathetic refers to the branch of the autonomic nervous system that serves as the counterbalance to the sympathetic nervous system. It is responsible for regulating various bodily functions and promoting a state of rest and relaxation. Functioning in parallel with the sympathetic nervous system, the parasympathetic nervous system is primarily involved in conserving energy, promoting digestion, and enhancing the body's ability to recover from stress.
The parasympathetic nervous system works through the release of the neurotransmitter acetylcholine, which binds to specific receptors in target tissues, initiating physiological responses. Its effects typically oppose those of the sympathetic nervous system, as it slows heart rate, dilates blood vessels, decreases blood pressure, and increases intestinal activity. Additionally, it stimulates the secretion of saliva, increases the production of digestive enzymes, and promotes bladder and bowel movements.
The parasympathetic division consists of two main nerves, the cranial nerves and the sacral nerves. The cranial nerves extend from the brainstem and control several key functions such as eye movement, facial expressions, and salivation. The sacral nerves, on the other hand, originate in the lower region of the spinal cord and are responsible for regulating bowel and bladder activity.
In summary, the parasympathetic nervous system plays a fundamental role in maintaining homeostasis and ensuring the body's relaxation and recovery. It promotes resting digestive activity, reduces heart rate and blood pressure, and supports various autonomic functions necessary for optimal bodily functions.
Common Misspellings for PARASYMPATHETIC
- oarasympathetic
- larasympathetic
- -arasympathetic
- 0arasympathetic
- pzrasympathetic
- psrasympathetic
- pwrasympathetic
- pqrasympathetic
- paeasympathetic
- padasympathetic
- pafasympathetic
- patasympathetic
- pa5asympathetic
- pa4asympathetic
- parzsympathetic
- parssympathetic
- parwsympathetic
- parqsympathetic
- paraaympathetic
Etymology of PARASYMPATHETIC
The word "parasympathetic" is derived from the combination of two Greek roots: "para" and "sympathetic".
The prefix "para" in Greek means "beside" or "alongside". In the context of the autonomic nervous system, it refers to the division that acts alongside the sympathetic division.
The term "sympathetic" refers to the sympathetic division of the autonomic nervous system, responsible for the "fight-or-flight" response. It comes from the Greek word "sympatheia", which means "feeling with" or "suffering with".
Thus, "parasympathetic" can be understood as the division of the autonomic nervous system that acts alongside or in conjunction with the sympathetic division.
