PLATINUM FINAL EXAM EMTP 3 3
REVIEW 2026 STUDY GUIDE
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Where is propogation of the action potential slowed throuhg the
conduction of the heart.
Answer: through the AV node
◉ The opening of what two channels depolarize/excite cardimocytes.
Answer: Na, Ca
◉ Outward flow of what drives the repolerization phase of the SA and
AV node action potential, and outwards flow of what, drives the
repolorization phase of the non-nodal cardiomyocytes.
Answer: K+
◉ The opening of what two channels is responsible for the plateau phase
of non-nodal cardiomyocytes.
Answer: Ca and K+
◉ What valves are closed during the ejection phase of ventricular
systole.
Answer: tricuspid and bicuspid
REVIEW 2026 STUDY GUIDE
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Where is propogation of the action potential slowed throuhg the
conduction of the heart.
Answer: through the AV node
◉ The opening of what two channels depolarize/excite cardimocytes.
Answer: Na, Ca
◉ Outward flow of what drives the repolerization phase of the SA and
AV node action potential, and outwards flow of what, drives the
repolorization phase of the non-nodal cardiomyocytes.
Answer: K+
◉ The opening of what two channels is responsible for the plateau phase
of non-nodal cardiomyocytes.
Answer: Ca and K+
◉ What valves are closed during the ejection phase of ventricular
systole.
Answer: tricuspid and bicuspid
