Indicate the Relative Comparison of Each of the Paired Items $\mathrm { O } _ { 2 }$

Indicate the relative comparison of each of the paired items by writing the appropriate letter in the blank using the following answer code:
a.A is greater than B.
b.B is greater than A.
c.A and B are equal.
_______A. Bload tlow thraugh an arteride upan increased sympathetic activty
________ B. Blood flow through an arteriole upon decreased sympathetic activity

_________A. Vencus return upan increased sympathetic stimulatinu of veins
__________B. Blood flow through a vein upan decreased sympathetic activity

_________A. Velacity of bloded flow thaugh the veins
_________B. Velacity of blade flow thaughe thpillaries

_________A. Local arterialar radius in the presence af local decreased $\mathrm { O } _ { 2 }$ and increased $\mathrm { CO } _ { 2 }$ concentrations
__________B. Local arteriolar rahius with narmal local cancentrations of $\mathrm { O } _ { \mathbf { 2 } }$ and $\mathrm { CO } _ { 2 }$

_________A. Circulatian through the shan wuring exercise
_________B. Circulation throuph the sian atrest

_________A. Circulation to the brain atrest
__________B. Circulation to the brain during an exarninetion

__________A. Net reabsarption pressure at the venular end of the capillary
___________B. Net ultrafiltation pressure at the arteriolar end of the capillary