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Circulatory system in cockroach is

Answer»

Open Circulation System in Cockroach. The heart of the cockroach is elongated, THICK, MUSCULAR, tubular and 13-chambered. It lies in the pericardial sinus of the HAEMOCOEL. Each chamber of the heart receives oxygenated blood from the dorsal sinus through ONE pair of slit like openings called OSTIA.



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