Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,897,711,567 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

baroreceptor
(redirected from Baroreceptors)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
baroreceptor /baro·re·cep·tor/ (-re-sep´ter) a type of interoceptor that is stimulated by pressure changes, as those in blood vessel walls.
bar·o·re·cep·tor (br-r-sptr) or bar·o·cep·tor (br-sptr)
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 central reflex mechanisms that tend to reduce that pressure. Also called pressoreceptor.

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 physiologic 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 [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.

baroreceptor (baˑ·r·ri·sepˑ·ter),
n receptor cell in the bloodstream that relays information about blood pressure to the medulla oblongata.

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.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Add definition
Mentioned in?  References in periodicals archive?   Medical browser?   Full browser?
 
With vasovagal syncope, the messages sent by baroreceptors fail to get through.
The baroreceptors are activated by the resultant increase in arterial blood pressure and act to buffer the vasoconstriction through dilation of vascular beds above the lesion level (with intact central control) and through reduction in HR (vagal innervation to the heart is unaffected by SCI).
 
 
 
Medical Dictionary
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.