enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Low pressure receptors - Wikipedia

    en.wikipedia.org/wiki/Low_pressure_receptors

    Low pressure baroreceptors have both circulatory and renal effects, which produce changes in hormone secretion. Stimulation of these receptors causes the atria to release atrial natriuretic peptide. This hormone acts on the kidneys to increase sodium excretion, which increases urine production and thereby leads to a decrease in blood pressure.

  3. Baroreflex - Wikipedia

    en.wikipedia.org/wiki/Baroreflex

    Their function is to sense pressure changes by responding to change in the tension of the arterial wall. [1] The baroreflex can begin to act in less than the duration of a cardiac cycle (fractions of a second) and thus baroreflex adjustments are key factors in dealing with postural hypotension , the tendency for blood pressure to decrease on ...

  4. Baroreceptor - Wikipedia

    en.wikipedia.org/wiki/Baroreceptor

    Baroreceptors are integral to the body's function: Pressure changes in the blood vessels would not be detected as quickly in the absence of baroreceptors. When baroreceptors are not working, blood pressure continues to increase, but, within an hour, the blood pressure returns to normal as other blood pressure regulatory systems take over. [11]

  5. Carotid sinus - Wikipedia

    en.wikipedia.org/wiki/Carotid_sinus

    The carotid sinus baroreceptor can be oversensitive to manual stimulation from the pressure applied at the carotid sinus at the carotid bifurcation. It is a condition known as 'carotid sinus hypersensitivity' (CSH), 'carotid sinus syndrome' or 'carotid sinus syncope', in which manual stimulation causes large changes in heart rate and blood ...

  6. Reflex bradycardia - Wikipedia

    en.wikipedia.org/wiki/Reflex_bradycardia

    Reflex bradycardia is a bradycardia (decrease in heart rate) in response to the baroreceptor reflex, one of the body's homeostatic mechanisms for preventing abnormal increases in blood pressure. In the presence of high mean arterial pressure , the baroreceptor reflex produces a reflex bradycardia as a method of decreasing blood pressure by ...

  7. Functional ultrasound imaging - Wikipedia

    en.wikipedia.org/wiki/Functional_Ultrasound_Imaging

    Ultrasound Doppler imaging can be used to obtain basic functional measurements of brain activity using blood flow. In functional transcranial Doppler sonography, a low frequency (1-3 MHz) transducer is used through the temporal bone window with a conventional pulse Doppler mode to estimate blood flow at a single focal location.

  8. Which foods are considered 'healthy?' FDA issues new label ...

    www.aol.com/news/foods-considered-healthy-fda...

    The current criteria, established in 1994, is "very outdated," Claudine Kavanaugh, director of the FDA's Human Food Program's Office of Nutrition and Food Labeling, said at the news conference.

  9. Ultrasound computer tomography - Wikipedia

    en.wikipedia.org/wiki/Ultrasound_computer_tomography

    Ultrasound computer tomographs use ultrasound waves to create images. In the first measurement step, a defined ultrasound wave is generated with typically Piezoelectric ultrasound transducers, transmitted in direction of the measurement object and received with other or the same ultrasound transducers. While traversing and interacting with the ...