, 4
5 During exercise the cardiac output of an athlete is 28 dm3 min–1 and their stroke volume is
160 cm3.
How many heart beats occur when the athlete exercises for five minutes? Assume the cardiac
output and stroke volume stay constant during the exercise time.
A 22
B 175
C 875
D 4480
Your answer [1]
6 Which option is a feature of tissue fluid?
A Tissue fluid carries oxygen away from muscle cells
B Tissue fluid does not contain erythrocytes
C Tissue fluid forms when net hydrostatic pressure < net oncotic pressure
D Tissue fluid forms when net hydrostatic pressure = oncotic pressure
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