baroreceptor

American  

[bar-oh-ri-sep-ter] / ˌbær oʊ rɪˈsɛp tər /

noun

1. a nerve ending, as one of those located in the blood vessels, that responds to changes in pressure.

---

baroreceptor British  

/ ˈbærəʊrɪˌsɛptə /

noun

1. a collection of sensory nerve endings, principally in the carotid sinuses and the aortic arch, that monitor blood pressure changes in the body

---

baroreceptor Scientific  

/ băr′ə-rĭ-sĕp′tər /

1. A cell or sense organ found in the walls of the body's major arteries and stimulated by changes in blood pressure. Signals from baroceptors lead to a reduction in arterial blood pressure.

---

Etymology

Origin of baroreceptor

First recorded in 1950–55; baro- + receptor

Example Sentences

When blood pressure drops too low, the rate of baroreceptor firing decreases.

From Textbooks • Jun. 19, 2013

The cardiac centers monitor baroreceptor firing to maintain cardiac homeostasis, a mechanism called the baroreceptor reflex.

From Textbooks • Jun. 19, 2013

The baroreceptor apparatus is part of the ending of a unipolar neuron that has a cell body in a sensory ganglion.

From Textbooks • Jun. 19, 2013

For example, there is a specific type of mechanoreceptor, called a baroreceptor, in the walls of the aorta and carotid sinuses that senses the stretch of those organs when blood volume or pressure increases.

From Textbooks • Jun. 19, 2013

As pressure and stretch decrease, the rate of baroreceptor firing decreases, and the cardiac centers increase sympathetic stimulation and decrease parasympathetic stimulation.

From Textbooks • Jun. 19, 2013