Answer to Hollywood Heartthrobs
Correct answer is C. The P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization. The image on the left is a section of the heart at the plane that the ascending aorta and pulmonary trunk begin. The section on the right is of the left ventricle opened with its anterior wall reflected to the the right side of the heart. Both heart sections are in the anatomical position.
.
Answer to this question is based on material presented in lectures 12 of the Thorax Lecture Series.
= Interventricular septum
= Right ventricle
= Right atrium
= Trabeculae carnae of left ventricle
= Posterior papillary muscle