Animal Circulatory Systems — Open vs. Closed Circulatory

The video covers circulatory system in animals, which acts as the body’s transport network to deliver oxygen and nutrients to cells while removing waste products. All animals rely on a circulatory system, but the specific type varies depending on their size and metabolic needs. We’ll compare the two main types of circulatory systems: the open circulatory system, found in smaller invertebrates like insects and mollusks, and the closed circulatory system, typical of larger animals, including vertebrates like humans.

The open circulatory system pumps a fluid called hemolymph into an open cavity where it surrounds organs and tissues, allowing for the diffusion of nutrients and waste. This system, while energy-efficient, supports only animals with lower metabolic demands. In contrast, the closed circulatory system, used by larger and more active animals, keeps blood within a network of vessels, allowing for higher pressure, faster circulation, and efficient nutrient delivery. This makes it ideal for animals with high energy needs, such as mammals and birds.

Watch to learn how these two types of circulatory systems differ and how each is uniquely adapted to meet the needs of different organisms.

#CirculatorySystem #OpenSystem #ClosedSystem #BloodCirculation #Biology

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