baroreceptor


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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 ?
Student's t-test was used to compare the difference of HR, MAP, slopes of the regression lines, and parameters of the baroreceptor function curves between groups.
To simulate the prehypertensive SS baroreceptor systemic phenotype of partial baroreceptor impairment (10,13), a chronic bilateral aortic denervation was performed instead of a chronic bilateral carotid sinus denervation, because the destruction of chemoreceptors during the carotid sinus denervation (22,23) in a species like the rat, which lacks functional aortic body chemoreceptors (25), causes chronic hypoventilation with consequent chronic systemic hypoxia, which in turn has the chronic effect of lowering blood pressure (23).
Relationship between baroreceptor reflex function and endorgan damage in spontaneously hypertensive rats.
Baroreceptors could be considered as playing part of a shared physiological modulatory mechanism.
1985 Changes in heart period, heart period variability and a spectral analysis estimate of respiratory sinus arrhythmia in response to pharmacological manipulations of the baroreceptor reflex in cats.
IX), baroreceptors (X), pulmonary distension receptors (X), intestinal
Efferent cardiac autonomic activity is largely under the control of baroreceptor and BRS, which is correlated with cardiac arrhythmias (29, 30).
We believe variability is a surrogate for vascular stiffness, and probably for the aging-related impairment in the baroreceptor reflex, a hypothesis we'll look at more closely in the near future," Dr.
In this particular piece of work Nadin analyzes the so called the baroreceptor reflex.
Researchers have suggested that the increase in peripheral vascular resistance is due to anatomical changes, transport defects, and altered baroreceptor or hormonal responses (St.
This type of headache is thought to be caused by chronic baroreceptor failure.