BIOC34H3 Lecture Notes - Lecture 8: Carotid Sinus, Aortic Arch, Baroreflex

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13 Apr 2011
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W short term bp regulation (seconds to minutes) W long term bp regulation (minutes to days) Short term accommodation of blood pressure is accomplished by the baroreflex. The converse is also true for this graph if the map goes up. www. notesolution. com. W carotid sinus: sense pressure of the blood flowing to the brain internal carotid external carotid common carotid. W aortic arch: sense pressure changes that can effect blood flow to the whole body. aortic arch. Hypertension (receptor desensitisation / new level of activity) As bp goes up over time, the ability of th body to initiate baroreflex is also reduced, as the new state of hbp is seen as a new norm. Until blood volume can be brought back to normal, the baroreflex does not stop. www. notesolution. com. Cardiovascular changes initiated by the baroreflex (brain versus the gut) W flow to the heart and brain is maintained; reductions in flow to other organs.