Sea Cucumbers have an open circulatory system along with a water vascular system, and a cardiovascular system. The water vascular system is was gives the cucumber its ability to use its tentacles to stretch and cover ground, to move around. The cardiovascular system of the Sea Cucumber consists of a central haenal ring surrounding the pharynx next to the ring canal of the water vascular system. These send our different vessels, so nutrients and liquids can be transported throughout the body. This combination of canals, pores, give the Sea Cucumber a very affective cardiovascular system, along with water vascular system, which gives them the ability to move around.