What is the difference between Comparison of Pig's Heart And Human Heart?

In the process of xenotransplantation, much attention has been given to the study of the pig's heart and human's heart. This is simply due to the fact that there are increasing demands for donations of organs for transplantation in human, and which seems fellow humans are not fully able to meet up. Though there are few similarities between the two hearts, such as;

the two are categorized as mammals, the hearts are divided similarly into the auricular and ventricular chambers, they both have their drainage via the pulmonary arteries, plus aorta into the greater and lesser circulation, but they have differences such as in their physiological functioning and anatomy of their hearts. The left or diagonal branches to conus arteriosus are not recognized in the pig's heart. Meanwhile, they are well recognized in the human's heart. The tubular appendage is present on the right atrium of a pig's heart but present on the left atrium of human's heart.

The pig heart is not the same as the human heart. The significant difference is that pigs have a large vessel to the rear of the heart from which blood from the heart and the left chest wall flows. In the human heart, there is a vessel called the azygous vein, which aids the left cardinal vein in discharging blood from the heart. Pigs do not have an azygous vein, and their cardinal vein is huge, and it drains blood from the heart and from the chest itself. Pig hearts also differ from the human heart in shape, texture, and angle of the blood vessels.

Human hearts have a rectangular profile, while the pig's hearts have more of a rounded "heart" shape. Pig heart muscle is coarser. Pigs also have two orifices in their left atrium, and the human heart does not. However, much like in the human heart, the pig's heart is the same size for an individual of the same weight.