Cardiac conduction system development — Flashcards

In which week of embryogenesis does the heart begin to beat? _____

Ventricular septal defects usually occur in the _____ portion of the interventricular septum

The primary heart tube _____ to establish left-right polarity beginning in week 4 of gestation

In the third step of atrial partitioning, the sinus venosus is "pulled" into the developing right atrium, forming the _____

The embryonic _____ gives rise to the AV and semilunar valves

In the third step of ventricular partioning, growth of _____ separates atria from ventricles

The 6th aortic arch forms the _____ artery and _____.

The 4th aortic arch forms the _____ artery.

aorticopulmonary septum

cardiovascular structures