baroreceptor


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baroreceptor

 [bar″o-re-sep´ter]
a sensory nerve terminal that is stimulated by changes in pressure, as those in blood vessel walls. Called also baroceptor and pressoreceptor.

bar·o·re·cep·tor

(bar'ō-rē-sep'ter, -tōr),
1. In general, any sensor of pressure changes.
2. Sensory nerve ending in the wall of the atrium of the heart, vena cava, aortic arch, and carotid sinus, sensitive to stretching of the wall resulting from increased pressure from within and functioning as the receptor of central reflex mechanisms that tend to reduce that pressure.
[G. baros, weight, + receptor]

baroreceptor

/baro·re·cep·tor/ (-re-sep´ter) a type of interoceptor that is stimulated by pressure changes, as those in blood vessel walls.

baroreceptor

(băr′ō-rĭ-sĕp′tər) or

baroceptor

(băr′ō-sĕp′tər)
n.
A sensory nerve ending in the walls of the auricles of the heart, vena cava, carotid sinus, and aortic arch, sensitive to stretching of the wall due to increased pressure from within, and functioning as the receptor of reflex mechanisms that tend to reduce that pressure.

baroreceptor

(băr′ə-rĭ-sĕp′tər)
n.
A sensory nerve ending that is stimulated by changes in pressure, especially one in the walls of blood vessels such as the carotid sinus.

baroreceptor

[ber′ōrisep′tər]
Etymology: Gk, baros + L, recipere, to receive
one of the pressure-sensitive nerve endings in the walls of the atria of the heart, the aortic arch, and the carotid sinuses. Baroreceptors stimulate central reflex mechanisms that allow physiological adjustment and adaptation to changes in blood pressure via changes in heart rate, vasodilation, or vasoconstriction. Baroreceptors are essential for homeostasis. Also called pressoreceptor.

baroreceptor

A cluster of mechanoreceptors in the atrium, vena cava, aortic arch and carotid sinus, which are sensitive to tissue stretching that occurs with increased intravascular pressure; baroreceptor information passes to the brainstem from the carotid sinus via the glossopharyngeal nerve and from the aortic arch and great vessels of the thorax via the vagal nerve.

bar·o·re·cep·tor

(bar'ō-rĕ-sep'tŏr)
1. In general, any sensor of pressure changes.
2. Sensory nerve ending in the cardiac atria, vena cava, aortic arch, and carotid sinus, sensitive to stretching of the wall resulting from increased pressure from within, and functioning as the receptor of central reflex mechanisms that tend to reduce that pressure.
Synonym(s): baroceptor, pressoreceptor.
[G. baros, weight, + receptor]

baroreceptor

(bar?o-re-sep'tor)
Enlarge picture
BARORECEPTOR
A sensory nerve ending stimulated by changes in pressure. Baroreceptors are found in the walls of the cardiac atria, the vena cava, aortic arch. The baroreceptors of the lung are stretch receptors that are stimulated by inflation. Synonym: barostat; pressoreceptor See: illustration

baroreceptor

A nerve ending which produces an output when there is a change in ambient pressure. Also known as baroceptor.

baroreceptor

or

baroceptor

a pressure RECEPTOR that responds to changes in blood pressure, found particularly in the carotid sinus and aortic arch.

baroreceptor (baˑ·r·ri·sepˑ·ter),

n receptor cell in the bloodstream that relays information about blood pressure to the medulla oblongata.

bar·o·re·cep·tor

(bar'ō-rĕ-sep'tŏr)
In general, any sensor of atmospheric pressure changes.
Synonym(s): pressoreceptor.
[G. baros, weight, + receptor]

baroreceptor

a sensory nerve terminal that is stimulated by changes in pressure, as those in blood vessel walls.

baroreceptor reflex
reflexes triggered by changes in pressure, usually refers to blood pressure, e.g. carotid sinus reflex.
References in periodicals archive ?
The present study performed in rats under low-stress conditions (a more common condition) also demonstrates the existence of such an interaction, but in a model including partial baroreceptor impairment, a more common form of baroreceptor impairment than total sino-aortic denervation, which suggests that the interaction is independent of the stress conditions.
Baroreceptors are stretch receptors found in the aorta and internal carotid arteries that monitor mean arterial pressure.
Changes in blood pressure are signalled to the brain by nerve cells called baroreceptors.
The efferent cardiac autonomic activity is largely under the control of baroreceptor and baroreflex sensitivity, which are correlated with cardiac arrhythmias (20).
A greater BV reduction in 2-legged cycling could also induce increased heart rate via baroreceptor uploading (Norton et al.
Through decreased baroreceptor stimulation (1,2), this may by itself have contributed to the decrease of AVP concentrations.
The target of these drugs--vasopressin--is synthesized by the hypothalamus in response to baroreceptor and osmotic stimuli.
Beat-to-beat short-term regulation of blood pressure is provided by a spontaneous reflex called the baroreceptor reflex.
One explanation for this paradox may be that an acute baroreceptor reflex is occurring in response to an increased cardiac afterload.
The investigator-initiated medicoEconomic evaluation of baroreceptor STIMulation for the treatment of Resistant HyperTensioN (ESTIM-rHTN) study was one of 5 studies selected in 2014 by the French Ministry of Health for public funding and sponsored by the Nancy University Hospital (Nancy, France).
Compounding this competitive landscape are different device categories that aim to reduce blood pressure through completely different mechanisms, such as carotid baroreceptor stimulation.