CCS Cardiac Anatomy and Physiology Flashcards
6 cards from real CCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CCS Cardiac Anatomy and Physiology flashcards as text
In right heart dominance, the posterior descending artery (PDA) originates from which vessel?
Answer: Right coronary artery
In right heart dominance (~85% of patients), the PDA arises from the right coronary artery, supplying the inferior interventricular septum.
The Frank-Starling law of the heart describes which relationship?
Answer: Ventricular preload and stroke volume
The Frank-Starling law states that increased ventricular filling (preload) stretches myocardial fibers, resulting in greater stroke volume.
Which of the four cardiac valves is located most anteriorly in the chest?
Answer: Pulmonary valve
The pulmonary valve is the most anteriorly positioned valve, located at the right ventricular outflow tract just beneath the sternum.
Ventricular end-diastolic pressure (VEDP) is used clinically as a surrogate for which cardiac parameter?
Answer: Preload
VEDP reflects the volume of blood in the ventricle at end-diastole and is used as a clinical measure of preload.
Which structure forms the muscular partition between the right and left ventricles?
Answer: Interventricular septum
The interventricular septum divides the right and left ventricles and is predominantly supplied by the LAD artery.
Normal left ventricular ejection fraction (LVEF) in a healthy adult is approximately which range?
Answer: 55–70%
A normal LVEF is 55–70%, indicating that the left ventricle ejects over half its end-diastolic volume with each beat.