Place a single word into each sentence to make it correct th

Place a single word into each sentence to make it correct, then place each sentence into a logical paragraph order.

Solution

The sympathetic fibers to blood vessel..........

1. Dual .

This tone keeps the vessels........

2. Constriction.

An_______ in firing rate.....

3. Increase.

An_______ in firing rate......

4. Decrease.

Thus the sympathetic division......

5. Opposite.