Do fetal pigs and humans have similar cardiac muscle structures?

Yes, fetal pigs and humans have similar cardiac muscle structures, as both belong to mammals and share a common evolutionary heritage. Their cardiac muscle is composed of striated muscle fibers that are interconnected via intercalated discs, allowing for coordinated contractions. This similarity allows both species to efficiently pump blood throughout the body, although there may be differences in size and specific functional adaptations. Overall, the fundamental structure and function of cardiac muscle are quite comparable between the two.