An earthworm has a double transport system composed of coelomic fluid that moves within the fluid-filled coelom and a simple, closed blood circulatory system.
The use of deep hypothermic circulatory arrest as an adjunct during clipping of complex giant aneurysms shows promise as a treatment for otherwise incurable lesions.
Disease outcomes included several types of cancer, diseases of the circulatory and respiratory system, diabetes mellitus, and kidney and liver diseases.