Certification Test. Questions with
Correct Verified. Latest 2025-2026.
Graded A
AV Node – ANS Back-up Pacemaker to SA node
Junctional rhythms rate: 40-60 bpm
Slows impulses coming from SA to the ventricle
Screens rapid atrial impulses to protect ventricles
Strong PNS/ Weak SNS
Bainbridge (atrial) reflex - ANS Increases heart rate in response to
increased venous return.
works when patient is fluid overloaded
Baroreceptor reflex - ANSActivated by abnormal (High) BP
Decreases BP
decreases sympathetic cardiac activity
works when patient is dehydrated
Diastole - ANSIsovolumetric ventricular relaxation
Ventricular filling
Isovolumetric ventricular contraction - ANSAtria relaxed
All Valves are closed
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