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Flowchart showing baroreceptor reflex. The baroreflex or baroreceptor reflex is one of the body's homeostatic mechanisms that helps to maintain blood pressure at nearly constant levels. The baroreflex provides a rapid negative feedback loop in which an elevated blood pressure causes the heart rate to decrease. Decreased blood pressure decreases ...
Orthostatic hypertension. Orthostatic hypertension is a medical condition consisting of a sudden and abrupt increase in blood pressure (BP) when a person stands up. [1] Orthostatic hypertension is diagnosed by a rise in systolic BP of 20 mmHg or more when standing. Orthostatic diastolic hypertension is a condition in which the diastolic BP ...
Baroreceptor. Baroreceptors (or archaically, pressoreceptors) are sensors located in the carotid sinus (at the bifurcation of common carotid artery into external and internal carotids) and in the aortic arch. [1] They sense the blood pressure and relay the information to the brain, so that a proper blood pressure can be maintained.
35094-2. Blood pressure ( BP) is the pressure of circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term "blood pressure" refers to the pressure in a brachial artery, where it is most commonly measured.
Typically, an increase in blood pressure may put strain on the heart and possibly other organs that may cause damage to the blood vessels, eyes and the heart. Uncontrollable increase in blood pressure can cause damage to the arteries that are present around kidneys, and thus restrict the blood to deliver. Due to inconsistent fluctuations in ...
The increase in ventilation is exhibited as an increase in rate rather than depth of ventilation, so the Cushing reflex is often associated with slow, irregular breathing. [7] [8] As a result of the now defective regulation of heart rate and blood pressure, the physiologic response is decreased blood flow peripherally, which can present as ...
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