In order to avoid discomfort during palatal injections, the ________ is reduced

True or false (circle one). During inhalation, the thoracic spine flexes as the rib cage sinks and the sternum depresses

Indicate whether the statement is true or false.

The most commonly broken bone in the body is:

a. the ulna. b. the clavicle. c. the tibia. d. a rib.