circulation

(ser-ku-la’shun) (L. circula’tio]. Movement in a regular or circuitous course, as, the circulation of the blood. toic c., circulation in the fetus through the umbilical ve els. collateral c., that which is carried on through secondary channels after stoppage of the principal course. compensatory c. Same as collateral ¢. coronary c., the circulation within the muscular ti ues of the heart. cro c., the circulation in a portion of the body of one animal of blood supplied from another animal. derivative c., the pa age of blood from arteries to veins without gving through capillaries. fetal c., that which is carried on in the fetus, umbilical cord, and placenta. first c., primitive c., that 15 225