Signs and symptoms of the chronic phase of Chagas disease may occur 10 to 20 years after initial infection, or they may never occur. In severe cases, however, Chagas disease signs and symptoms may include: 1  Irregular heartbeat.2  Congestive heart failure. 3  Sudden cardiac arrest.4  Difficulty swallowing due to enlarged esophagus.igns and symptoms of the chronic phase of Chagas disease may occur 10 to 20 years after initial infection, or they may never occur. In severe cases, however, Chagas disease signs and symptoms may include: 1  Irregular heartbeat.
Behind the octopus's head, directly opposite the arms, is its mantle. The mantle is a highly muscled structure that houses all of the animal's organs. Its gills, hearts, digestive system and reproductive glands are all crammed into this one space.
Blue Ringed Octopus Description The blue ringed octopus is a soft bodied organism which belongs to the Class Cephalopoda (which means 'head and foot' animal).For the octopus, along with other Cephalopods such as cuttlefish and squid, the foot has become tentacles.he blue ringed octopus is a soft bodied organism which belongs to the Class Cephalopoda (which means 'head and foot' animal).