Question

The arterioles leading to an organ constrict in order to decrease flow to the organ. To shut down an organ, blood flow is reduced naturally to 1.00% of its original value. By what factor did the radii of the arterioles constrict?

A) 2.00
B) 5.00
C) 10.0
D) 100

Answer 1

The radii of the arterioles constrict by a factor of 16 times when they decrease to one-half of their original radius.

Step-by-step explanation:

The arterioles leading to an organ constrict in order to decrease flow to the organ. The radii of the arterioles constrict by a factor of 16 times when they decrease to one-half of their original radius. This means that the resistance to flow will increase 16 times when the radii of the arterioles constrict.