It takes about 18 seconds for the 4.7 L of blood present in the average adult to circulate through the entire body.Blood contains about 5 *10⁶ red blood cells (RBC)per $\mu$L.On average,how many RBC circulate through the system per second?

Question

Quizplus · Accepted Answer

The total number of RBCs in the body is 5 x 10^6 RBC/μL x 4.7 L x 10^6 μL/L = 2.35 x 10^13 RBC. Since it takes 18 seconds for the blood to circulate, the number of RBCs circulating per second is 2.35 x 10^13 RBC / 18 s = 1.3 x 10^12 RBC/s, which is closest to 1 x 10^12 RBC/s.

It Takes About 18 Seconds for the 4 μ\muμ LOn Average,how Many RBC Circulate Through the System Per Second

It Takes About 18 Seconds for the 4 $\mu$ LOn Average,how Many RBC Circulate Through the System Per Second