For the following questions, use an ICD-9-CM code book and select the appropriate code(s) for the diagnostic phrases given

The organ of ________ is located in the cochlear duct and contains nerve endings to transmit sound vibrations

a. Corti b. pinna c. incus d. auricle

Elongation error results from which of the following?

A) Excessive vertical angulation using the bisecting technique B) Excessive vertical angulation using the paralleling technique C) Inadequate vertical angulation using the bisecting technique D) Inadequate vertical angulation using the paralleling technique