Phenomena and Processes

Baroreflex

A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure.

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Synonyms

5 entry terms
  • Baroreceptor Reflex
  • Baroreceptor Reflexes
  • Baroreflexes
  • Reflex, Baroreceptor
  • Reflexes, Baroreceptor

MeSH Record

Aspects Covered

6 allowable subheadings

Indexed with the subheadings drug effects, ethics, genetics, immunology, physiology, radiation effects.

MeSH Record

History Note

94

MeSH Record

Previous Indexing

  • Pressoreceptors (1966-1993)

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AMA Style

References

  1. National Library of Medicine. Baroreflex. Medical Subject Headings (MeSH). 2026. Unique ID D017704. http://id.nlm.nih.gov/mesh/2026/D017704
  2. Baroreflex. In: Wikipedia. https://en.wikipedia.org/wiki/Baroreflex
  3. Baroreflex. In: Wikidata. https://www.wikidata.org/wiki/Q808725