Animals - Animals

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Animals In animals, the transport system is generally called a  circulatory system  because the transport fluid  flows through a circuit. Most animals have one or more organs called  hearts  for pumping the fluid.  The channels through which the fluid flows are the  arteries  (which lead away from the heart), the  veins  (which lead to the heart), and the  capillaries  (the microscopic blood vessels between arteries  and veins).  In animals, such as earthworms, the circulatory system consists of blood, channels, and five  pulsating vessels that function as hearts, rushing blood through the vessels to all the earthworm's  body parts. Gases bind to hemoglobin in the blood. Terrestrial arthropods have an open circulatory system. A tubelike heart pumps blood into a dorsal  blood vessel, which empties into the arthropod's body cavity, or  hemocoel . Contractions of the body 
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This note was uploaded on 11/11/2011 for the course BIO 101 taught by Professor Pesthy during the Fall '07 term at Texas State.

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