During the heart dissection lab, you are supposed to cut the wall of right ventricle first. But you get a little disoriented how to properly position a heart on your table. Nevertheless you make the cut and open the heart. Of the following, which is the best way to recognize that you are in the correct ventricle?

Question

Quizplus · Accepted Answer

The description of a valve with three flaps is characteristic of the tricuspid valve found in the right ventricle. Thus, recognizing a valve with three flaps would indicate that you have successfully opened the right ventricle. A) Thick walls are not specific to the right ventricle and can also be seen in the left ventricle. B) Four holes without valves could describe the pulmonary veins or pulmonary arteries, but neither are chambers of the heart. D) The absence of a valve at the point where the large vessels attach is a feature of the aorta and pulmonary trunk, not the ventricles.

During the Heart Dissection Lab, You Are Supposed to Cut