What do the acronyms CAPD and CCPD represent?

When you are dispatched to an emergency, it is MOST important to:

A) take a route that will ensure a fast response time. B) use GPS to ensure accurate navigation to the scene. C) use your lights and siren to warn other motorists. D) determine which route will be used to arrive safely.

The term for the canal that runs through the center of the diaphysis and contains yellow bone marrow in adults is the ________ cavity.

Fill in the blank(s) with the appropriate word(s).