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Dictionary Suite
baroreceptor a nerve ending sensitive to blood pressure that helps regulate the dilation of blood vessels in the circulatory system.
bloodstream the blood flowing within the circulatory system of a living organism.
circulatory of or pertaining to the circulatory system, the system of bodily organs, including the heart, arteries, and veins, that send blood and lymph throughout the body and return it, no longer containing oxygen, to the heart. [1/2 definitions]
ergot the grainlike masses produced by the ergot fungus, or the toxin they contain, which causes circulatory arrest in humans. [1/3 definitions]
gastrovascular simultaneously serving both a digestive and a circulatory function.
heart the organ that pumps blood through the circulatory system of a person or animal. [1/8 definitions]
hemodynamic pertaining to the flow of blood in the circulatory system.
hemodynamics the flow of blood in the circulatory system, or the study of blood flow.
hemolymph the circulatory fluid in the open tissue spaces of some invertebrates that acts as or in addition to blood.
mononucleosis the presence of abnormal numbers of mononuclear leukocytes in the circulatory blood. [2 definitions]
sap1 the fluid that carries nutrients throughout the circulatory systems of plants, esp. trees. [1/4 definitions]
shock1 a failure of the circulatory system caused by serious injury or illness, characterized by depression of various vital signs. [1/9 definitions]
shunt a connection between blood vessels, or between parts of the circulatory system, esp. a bypass created surgically. [1/10 definitions]
thrombosis an abnormal clotting of blood in the circulatory system.
yolk sac a similar organ in the human embryo that functions as the circulatory system until internal circulation begins. [1/2 definitions]