heart's stroke volume varies from person to person. The total volume low rate of blood entering a person's circulatory system from the heart can be computed thy multiplying the hearts stroke volume by the person's heart rate, it can be significantly higher for an athlete performing strenuous exercise.

Jenna is a sprinter whose stroke volume is 80 ml. Her heart rate during a race is about 180 beats per minute.

If the length of the a average arteriole in her body is about 2 cm, then approximately what is the blood pressure drop across one of Jenna, arterioles during a race? ans in millimeters of mercury

The viscosity of blood is about 2.3 x 10-3 Pa * s. Note also that 1 millimeter of mercury is about 133 Pa, and there are 1000 liters in a cubic centimeter

table of physical characteristics of blood vessels may also be useful

4SO that I millimeter of mercury is about 133 Pa, an The following table of physical characteristics of blood vessels may also b Diameter of a Aorta Arteries Arterioles Capillaries Venules Veins Vena Cava single vessel (cm) 2 0.5 0.002 0.0009 0.003 0.5 3 Total cross-sectional area 3 of all vessels of a given 20 500 4000 3000 80 7 ype in the body (cm?)