← All CCS Flashcard Decks

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
  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.