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lymphatic system

(Encyclopedia)CE5 Lymphatic system lymphatic system lĭmfătˈĭk [key], network of vessels carrying lymph, or tissue-cleansing fluid, from the tissues into the veins of the circulatory system. The lymphatic sy...

nervous system

(Encyclopedia)CE5 Nerve cell CE5 Nervous system nervous system, network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of ...

cgs system

(Encyclopedia)cgs system, system of units of measurement based on the metric system and having the centimeter of length, the gram of mass, and the second of time as its fundamental units. Other cgs units are the dy...

monitorial system

(Encyclopedia)monitorial system, method of elementary education devised by British educators Joseph Lancaster and Andrew Bell during the 19th cent. to furnish schooling to the underprivileged even under conditions ...

national bank

(Encyclopedia)national bank, in the United States, financial institution of a class authorized by Congress in acts of 1863 and 1864. The acts were intended to provide a way of marketing the large bond issues made n...

geocentric system

(Encyclopedia)geocentric system: see Ptolemaic system. ...

portal system

(Encyclopedia)portal system: see circulatory system. ...

gastrointestinal system

(Encyclopedia)gastrointestinal system: see digestive system. ...

cardiovascular system

(Encyclopedia)cardiovascular system: see circulatory system. ...

heliocentric system

(Encyclopedia)heliocentric system: see Copernican system. ...