invite friends ⋅ share via emailtwitter
support the site ⋅ become a member ⋅ unscramble the egg
free120  nbme24  nbme23  nbme22  nbme21  nbme20  nbme19  nbme18  nbme17  nbme16  nbme15  nbme13 

NBME 21 Answers

nbme21/Block 3/Question#29 (25.9 difficulty score)
A 34-year-old man is evaluated after becoming ...
Number of impulses from carotid baroreceptor: decreased;
Sympathetic efferent activity: increased;
Parasympathetic efferent activity: decreased


Login to comment/vote.

 +11  upvote downvote
submitted by haldol(11),
unscramble the site ⋅ become a member ($36/month)

PB is olw so ylbvoosui the ydob lwil awnt ot noespdr yb nnrciiegas hispecsytamt nda egadnirecs pahi.rcsmptaesaty csein hte PB is wol, rtehe is sels sresrpeu sinaatg the llwa fo eth oacrdit usnsi -- ienngam less aomlusiitnt nad wfree .pussmlei wefer cotdair leupsism nsema eefrw masptsctahryaepi

pparalpha  Hyotension will lead to decreased arterial pressure and DECREASED stretch. This leads to decreased afferent barcreceptor firing (carotid sinus and aortic arch). This leads to an increase in efferent sympathetic firing and decreased efferent PNS stimulation. This leads to vasoconstriction, increased HR and increased BP. +1  
sahusema  The way I remember this, carotid massage slows the heart. So baroreceptor stimulation (more impulses) increases parasympathetic output. +3  
cienfuegos  FA 2018 pg 291 has helpful image/description +