USMLE Forum - Largest USMLE Community
A decrease in BP is sensed by.............? - excelll - Printable Version

+- USMLE Forum - Largest USMLE Community (https://www.usmleforum.com)
+-- Forum: USMLE Forum (https://www.usmleforum.com/forumdisplay.php?fid=1)
+--- Forum: Step 1 (https://www.usmleforum.com/forumdisplay.php?fid=2)
+--- Thread: A decrease in BP is sensed by.............? - excelll (/showthread.php?tid=377592)



A decrease in BP is sensed by.............? - excelll - ArchivalUser - 01-14-2009

1. carotid body
2. Carotid sinus
3. Aortic arch baroreceptors
4. Aortic arch chemoreceptors


0 - ArchivalUser - 01-14-2009

1 IS RIGHT


0 - ArchivalUser - 01-14-2009

2 bc there is a decreases stretch via IX to the medulla which then increase BP through the sympathetic system


0 - ArchivalUser - 01-14-2009

2....baroreceptors r located in carotid sinus!


0 - ArchivalUser - 01-14-2009

carotid sinus receptors respond ( decrease or increase ) aortic arch receptor respond only to increase
carotid arch recptors through herings nerve (branch of 9 cn supplies the vasomotor center ) which causes increase in sympathetics and decrease in parasympathetics leading to increase in bp ,contractility ,tpr
2