Helping the library has never been easier! Use the following link to shop and Amazon will automatically donate 0.5% of the price of your eligible AmazonSmile purchases to the Friends of Crawford County Library! Just click and shop as usual...Bookmark it! http://smile.amazon.com/ch/38-3413436.
Circulation. (Science: physiology) movement in a regular or circuitous course, as the movement of the blood through the heart and blood vessels. Origin: L. Circulatio. Please contribute to this project, if you have more information about this term feel free to edit this page.
Circulation of blood refers to its continual flow from the heart, through branching arteries, to reach and traverse the microscopic vessels in all parts of the body, reconvergâ¦ing in the veins and returning to the heart, to flow thence through the lungs and back to the heart to start the circuit again.