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circulatory system

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
circulatory system
n.
The system of structures, consisting of the heart, blood vessels, and lymphatics, by which blood and lymph are circulated throughout the body. Also called vascular system.
circulatory system,
n the system for the circulation of blood, consisting of the heart, arteries, arterioles, capillaries, venules, and veins.
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Plus, unlike a human's circulatory system, where oxygen-rich blood gets shuttled around the body within enclosed vessels, tarantulas have an open circulatory system.
Tarantula treat by Bryner, Jeanna / Science World
But other scientists argue that the croc's unique circulatory system is instead an adaptation for lengthy dives, during which the animal must hold its breath as it stalks and then drowns its prey.
Quirky cardiology: crocs' hearts may aid their digestion by Harder, B. / Science News
They are also a much better representation of your health, level of fitness and condition of your heart, lungs, circulatory system, endocrine system, central nervous system and muscular system.
BASIC TRAINING by Daily News (Los Angeles, CA)
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