How is the flow of blood in an open circulatory system like the flow of water in an outdoor fountain?

Answer 1

In an open circulatory system, blood flows freely through body cavities, much like water in an outdoor fountain that spills over and fills the surrounding area. Instead of being contained within vessels, the blood bathes organs directly, similar to how fountain water cascades and flows around sculptures. Both systems rely on gravity and pressure to facilitate movement, creating a dynamic and continuous flow without strict pathways. This arrangement allows for efficient nutrient and gas exchange in both biological and mechanical systems.