Indicate the Relative Comparison of Each of the Paired Items $\begin{array}{ll}a.&\text {A is greater than B }\\b.&\text {B is greater than A }\\c.&A \text { and } B \text { are equal }\\\end{array}$

Indicate the relative comparison of each of the paired items by writing the appropriate letter in the blank using the following answer code: $\begin{array}{ll}a.&\text {A is greater than B }\\b.&\text {B is greater than A }\\c.&A \text { and } B \text { are equal }\\\end{array}$
____ $\quad$ A. Blood flow through an arteriole upon increased sympathetic activity
$\quad$$\quad$ B. Blood flow through an arteriole upon decreased sympathetic activity

____ $\quad$ A. Venous return upon increased sympathetic stimulation of veins
$\quad$$\quad$$\quad$ B. Blood flow through a vein upon decreased sympathetic activity

____ $\quad$ A. Velocity of blood flow through the veins
$\quad$$\quad$$\quad$ B. Velocity of blood flow through the capillaries

____ $\quad$ A. Local arteriolar radius in the presence of local decreased $\mathrm{O}_{2}$ and increased $\mathrm{CO}_{2}$ concentrations
$\quad$$\quad$$\quad$ B. Local arteriolar rachus with nomal local concentrations of $\mathrm{O}_{2}$ and $\mathrm{CO}_{2}$

____ $\quad$ A. Circulation through the skin during exercise
$\quad$$\quad$$\quad$ B. Circulation through the skin at rest

____ $\quad$ A. Circulation to the brain at rest
$\quad$$\quad$$\quad$ B. Circulation to the brain during an examination

____ $\quad$ A. Net reabsorption pressure at the venula end of the capillary
$\quad$$\quad$$\quad$ B. Net ultrafiltration pressure at the arteriolar end of the capillary