The metric system provides a very accurate way to measure length, volume, and weight

Approximately how far do the normal adult lungs extend above the clavicles?

a. 2 cm b. 3 cm c. 4 cm d. 5 cm

Establishing drainage of a periodontal abscess may be difficult because the

A) pocket is occluded. B) pocket is too shallow. C) tooth is nonvital. D) tooth is extruded.