Cardiac Electrophysiology — Flashcards

When a person moves from standing to supine position, the heart rate _____, due to activation of baroreceptor reflex

Phase 1 of the myocardial action potential is caused by inactivation of voltage-gated _____ channels and opening of voltage-gated K+ channels

x descent on JVP: Corresponds to the _____ as the ventricular systole pulls the tricuspid valve.

Phase 3 of the myocardial action potential is caused by massive efflux of _____ and closure of voltage-gated Ca2+ channels

A _____ dromotropic effect increases the PR interval on an ECG

Baroreceptors provide _____ feedback in responses to changes in blood pressure

Phase 3 of the SA node action potential is caused by activation of _____ channels and inactivation of Ca2+ channels

The rate of phase _____ in the SA node action potential cycle determines heart rate

Does the following cardiac/vascular function graph reflect a patient with chronic anemia or anaphylaxis? _____

The image shows a _____ pulse waveform.

Hint: type of pulse