Cardiac Output
Author(s): Lou Gross1, Monica Beals1, Susan Harrell1
University of Tennessee Knoxville
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Description
This activity maps to the OpenStax biology textbook, 40.3 Mammalian Heart and Blood Vessels
Student Introduction: Vertebrate circulatory systems consist of blood, which transports materials to and from cells via blood vessels, and a heart to pump the blood. One important role of the circulatory system is to provide oxygen to cells. As a general rule, small animals have a higher rate of oxygen consumption per unit body mass than large animals. Therefore, the heart of a small animal must supply oxygen at a higher rate than the heart of a large animal. Since the oxygen capacity of blood is similar between small and large animals, small animals must have hearts that pump blood at a higher rate, or in other words, have a higher cardiac output.
Cite this work
Researchers should cite this work as follows:
- Gross, L., Beals, M., Harrell, S. (2019). Cardiac Output. Quantitative Biology at Community Colleges, QUBES Educational Resources. doi:10.25334/Q4GQ8Z