- Place the heart of the sheep on its dorsal side.

- Introduce a probe in the pulmonary artery in the direction of the right ventricle.

- Cut the wall of the artery along its length then cut the wall of the heart along the probe.

- Seperate the parts that were cut.

- For the left side of the heart, proceed in the same manner and introduce the probe in the aorta in the direction of the left ventricle.

- Introduce the probe in the auricles and cut.

Procedures