As a class, ____ are probably the most commonly used medications for sedation in the emergency airway management arena.

Many firefighters can probably recall incidents during which they experienced dizziness, weakness, and rapid heart rate, and did not realize that they may have been exposed to ____________

a. cyanide b. ozone c. carbon monoxide d. carbon dioxide

Cartilage-forming cells are called ________.

A. osteocytes B. melanocytes C. hemocytes D. chondrocytes