Circulatory System Of Molluscs

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Correct option is b) molluscs' circulatory systems are mainly open. Although molluscs are coelomates, their coeloms are reduced to fairly small spaces enclosing the heart and gonads. It is found in arthropods and molluscs. In this type of circulatory system, the blood pumped by the heart circulates through a closed network of.

Although molluscs are coelomates, their coeloms are reduced to fairly small spaces enclosing the heart and gonads. The six major mollusc classes class 1 : Learn about the digestive systems and radula of phylum mollusca and explore the nervous system, ganglia, and open circulatory system with hemocyanin. There are several types of circulatory systems. The open circulatory system, examples of which are diagrammed in figure 2, is common to molluscs and arthropods. In a closed circulatory system, blood is contained inside blood vessels and circulates unidirectionally from the heart around the systemic circulatory route, then returns to the heart. The circulatory system mollusks possess an open circulatory system in which body fluid ( hemolymph) is transported largely within sinuses devoid of distinct epithelial walls. Within a open circulatory system blood is not restricted to circulating within the blood vessels. Open circulatory systems which have evolved through species such as crustaceans, insects,.