<prompt> How much blood flows to skeletal muscles during exercise?50 to 75 mLmin of blood per 100 g of muscle4 to 7 mLmin of blood per 100 g of muscle20 to 30 mLmin of blood per 100 g of muscle10 to 20 mLmin of blood per 100 g of muscle  <response>: Blood flow to tissues is generally propoional to metabolic activity. At rest, approximately 20 of CO is distributed to the skeletal muscle. However, during physical activity, the majority 85 of the increased CO is diveed to the working muscles. This represents an increase from 4 to 7 to 50 to 75 mLmin of blood per 100 g of muscle. Ref: Fletcher G.F., Flipse T.R., Safford R.E. 2011. Chapter 100. Exercise in Health and Cardiovascular Disease. In V. Fuster, R.A. Walsh, R.A. Harrington Eds, Hursts The Hea, 13e. 