Patients sign Block 13 of the CMS-1500 claim to instruct the payer to directly reimburse the provider. This concept is called __________

The recommended vertical angulation for exposing a mandibular molar periapical radiograph using the bisecting technique is

A) -10 degrees. B) ?15 degrees. C) ?20 degrees. D) ?5 degrees.

The _______________ cartilage covers the epiphyses of long bones and functions to cushion the bones and absorb stress during bone movements. 

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