The use of ________ to communicate is as widespread as telephone communication in the medical office setting.

Which type of indicating valve extends horizontally through the wall with the target and valve operating nut outside of the building?

A. Outside stem and yoke B. Post indicator valve (PIV) C. Wall post indicator valve (WPIV) D. Post indicator valve assembly (PIVA)

Which directional terms are used when talking about the location of the spinal cord?

A) Interior, exterior B) Superficial, deep C) Ventral, dorsal D) Inferior, superior