Sentence Examples with the word Circulatory system

Much light has been thrown upon the variations of arterial and venous blood pressures by Karl Ludwig (1816-1895) and his many followers: by them not only the diseases of the circulatory system itself are elucidated, but also those of other systems - the nervous, for instance - which depend intimately on the mechanical integrity of the circulation of the blood as well as on the chemical integrity of the blood itself.

The circulatory system of Carinella is considerably different, being more lacunar and less restricted to definite vascular channels.

He defined them as possessing radial instead of bilateral symmetry, and as apparently destitute of nervous system and sense organs, as having the circulatory system rudimentary or absent, and the respiratory organs on or coextensive with the surface of the body; he included under this title and definition five classes, - Echinodermata, Acalepha, Entozoa, Polypi and Infusoria.