Definition of parasympathetic in English:

parasympathetic

adjective ˌparəsɪmpəˈθɛtɪkˌpærəˌsɪmpəˈθɛdɪk

Physiology

Relating to the part of the autonomic nervous system which balances the action of the sympathetic nerves. It consists of nerves arising from the brain and the lower end of the spinal cord and supplying the internal organs, blood vessels, and glands.
〔生理〕副交感（神经系统）的
Example sentencesExamples
- The reflexes are mediated by the sympathetic or parasympathetic nerves of the autonomic nervous system, in response to information reaching the central nervous system from a variety of receptors in the organs and tissues.
- So the heart rate is controlled by the balance between the parasympathetic and sympathetic nervous systems' activity.
- The toxin also inhibits release of acetylcholine in all parasympathetic and cholinergic postganglionic sympathetic neurones.
- Postganglionic parasympathetic nerves mediate both cholinergic contractions and nonadrenergic, noncholinergic relaxations of smooth muscle in the airway.
- In autonomic disease, the sympathetic, parasympathetic, and enteric nerves are affected.

Origin

Early 20th century: from para-¹ 'alongside' + sympathetic, because some of these nerves run alongside sympathetic nerves.

Definition of parasympathetic in US English:

parasympathetic

adjectiveˌpærəˌsɪmpəˈθɛdɪkˌparəˌsimpəˈTHedik

Physiology

Relating to the part of the automatic nervous system that counterbalances the action of the sympathetic nerves. It consists of nerves arising from the brain and the lower end of the spinal cord and supplying the internal organs, blood vessels, and glands.
〔生理〕副交感（神经系统）的
Example sentencesExamples
- Postganglionic parasympathetic nerves mediate both cholinergic contractions and nonadrenergic, noncholinergic relaxations of smooth muscle in the airway.
- The toxin also inhibits release of acetylcholine in all parasympathetic and cholinergic postganglionic sympathetic neurones.
- The reflexes are mediated by the sympathetic or parasympathetic nerves of the autonomic nervous system, in response to information reaching the central nervous system from a variety of receptors in the organs and tissues.
- In autonomic disease, the sympathetic, parasympathetic, and enteric nerves are affected.
- So the heart rate is controlled by the balance between the parasympathetic and sympathetic nervous systems' activity.

Origin

Early 20th century: from para- ‘alongside’ + sympathetic, because some of these nerves run alongside sympathetic nerves.

词汇	parasympathetic
释义	Definition of parasympathetic in English: parasympathetic adjective ˌparəsɪmpəˈθɛtɪkˌpærəˌsɪmpəˈθɛdɪk Physiology Relating to the part of the autonomic nervous system which balances the action of the sympathetic nerves. It consists of nerves arising from the brain and the lower end of the spinal cord and supplying the internal organs, blood vessels, and glands. 〔生理〕副交感（神经系统）的 Example sentencesExamples The reflexes are mediated by the sympathetic or parasympathetic nerves of the autonomic nervous system, in response to information reaching the central nervous system from a variety of receptors in the organs and tissues. So the heart rate is controlled by the balance between the parasympathetic and sympathetic nervous systems' activity. The toxin also inhibits release of acetylcholine in all parasympathetic and cholinergic postganglionic sympathetic neurones. Postganglionic parasympathetic nerves mediate both cholinergic contractions and nonadrenergic, noncholinergic relaxations of smooth muscle in the airway. In autonomic disease, the sympathetic, parasympathetic, and enteric nerves are affected. Origin Early 20th century: from para-¹ 'alongside' + sympathetic, because some of these nerves run alongside sympathetic nerves. Definition of parasympathetic in US English: parasympathetic adjectiveˌpærəˌsɪmpəˈθɛdɪkˌparəˌsimpəˈTHedik Physiology Relating to the part of the automatic nervous system that counterbalances the action of the sympathetic nerves. It consists of nerves arising from the brain and the lower end of the spinal cord and supplying the internal organs, blood vessels, and glands. 〔生理〕副交感（神经系统）的 Example sentencesExamples Postganglionic parasympathetic nerves mediate both cholinergic contractions and nonadrenergic, noncholinergic relaxations of smooth muscle in the airway. The toxin also inhibits release of acetylcholine in all parasympathetic and cholinergic postganglionic sympathetic neurones. The reflexes are mediated by the sympathetic or parasympathetic nerves of the autonomic nervous system, in response to information reaching the central nervous system from a variety of receptors in the organs and tissues. In autonomic disease, the sympathetic, parasympathetic, and enteric nerves are affected. So the heart rate is controlled by the balance between the parasympathetic and sympathetic nervous systems' activity. Origin Early 20th century: from para- ‘alongside’ + sympathetic, because some of these nerves run alongside sympathetic nerves.
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