On the National Fire Protection Association hazardous materials classification placard, the blue diamond represents:

A Vazirani-Akinosi nerve block is also called the ________ technique

Fill in the blank(s) with correct word

The membrane that covers the thoracic cavity and the upper side of the diaphragm is called the:

A. parietal pleura. B. pleural fluid. C. visceral pleura. D. pleural cavity