Dragging a victim may be necessary when conditions dictate that rescuers remain low or manpower is limited.

Biceps brachii and coracobrachialis produce:

a. Extension of the elbow joint b. Pronation of the forearm c. Stabilization of shoulder joint d. Abduction of the shoulder joint

Carbon monoxide, which is produced by the exhaust of internal combustion engines, causes the skin and mucous mem-branes to become:

A. bluish B. black C. colorless D. cherry red