If the weight being pulled is below the level of the EMT's waist, he should be in a(n) ________ position

The primary function of platelets is to:

a. Defend the body against bacterial invasion. b. Carry oxygen to tissues. c. Facilitate blood clotting. d. Regulate acid-base balance.

The central portion of the adrenal gland is the adrenal _______________.

Fill in the blank(s) with the appropriate word(s).